Cybersecurity Glossary

AI DAN Prompt

An AI DAN prompt is a type of prompt injection attack designed to bypass an AI model’s built-in ethical and security restrictions.

AI Data Poisoning

Threat actors manipulate training data in AI data poisoning attacks to compromise AI-powered security systems, creating systematic vulnerabilities.

AI Ethics

AI ethics encompass the principles and guidelines that govern the responsible development, deployment, and use of artificial intelligence.

AI Native

AI native refers to products, services, or organizations that are inherently designed around artificial intelligence, embedding it as a foundational component rather than as an add-on.

AI in Email Security: How It Works, Where It Fails, and What Frameworks Apply

AI in email security combines behavioral analysis, NLP, and relationship mapping to stop threats legacy filters miss. Explore how it works and its limits.

AI-Powered Cyberattacks: How They Work, 12 Types, and How to Defend Against Them

AI cyber attacks bypass traditional defenses using deepfakes, polymorphic malware, and adaptive phishing. Learn the top attack types and how to stop them.

Abuse Mailbox

An Abuse Mailbox is the destination of user-reported suspicious emails sent to IT and security teams for further evaluation. It's a crucial part of tracking and stopping potential email threats.

Account Takeover Fraud

Account takeovers happen when cybercriminals steal login credentials to access an email account. If a malicious actor successfully compromises an account, they can use it to commit fraud, send phishing emails, steal data, and more.

Adaptive Authentication vs. Traditional MFA: Key Differences

Adaptive authentication adjusts verification requirements in real time based on risk signals. See how it differs from traditional MFA and supports zero trust.

Advanced Persistent Threat

Advanced persistent threats are sophisticated, long-term cyberattacks where nation-state actors and well-resourced groups maintain undetected network access for months or years to steal sensitive data, conduct espionage, or position themselves for future operations.

Adversarial AI

Adversarial AI involves malicious attacks targeting AI systems and AI-powered security tools, representing a critical threat to enterprise cybersecurity operations.

Adversary In The Middle

Adversary In The Middle attacks intercept authentication between users and services to hijack sessions and bypass multi-factor authentication.

Alert Fatigue

Alert fatigue happens when security teams get overwhelmed by too many alerts, making them less effective at catching real threats.

Angler Phishing

Angler phishing exploits social media customer service channels to harvest credentials, bypassing traditional email security controls through brand impersonation attacks.

Anomaly Detection in Cybersecurity: Methods and Use Cases

Anomaly detection flags threats by modeling normal behavior first. Explore methods, use cases, and how to manage false positives in layered defense.

Arbitrary Code Execution

Arbitrary code execution enables attackers to run unauthorized commands with system-level privileges, representing a complete compromise of enterprise security infrastructure.

Artificial Intelligence (AI)

Artificial intelligence is the simulation of human intelligence by machines to perform tasks such as learning, reasoning, and decision-making.

Attack Surface

An attack surface is the total set of points an attacker can exploit to access a system, including digital, physical, and human vulnerabilities.

Attack Vector

Attack vectors are the specific pathways cybercriminals exploit to breach organizations, from phishing emails to unpatched vulnerabilities.

Autonomous AI

Autonomous AI systems work independently with little human supervision, making their own decisions and completing tasks automatically.

Backdoor Attack

Adversaries establish backdoor attacks as persistent unauthorized access pathways that bypass normal security controls.

Bad Rabbit Ransomware

Barrel Phishing

Barrel phishing uses a series of benign emails to establish trust before deploying malicious requests, exploiting relationship dynamics rather than immediate pressure tactics.

Behavioral AI

Behavioral AI combines artificial intelligence techniques with behavioral science to analyze and interpret human actions, preferences, and patterns.

Blast Phishing

Blast phishing distributes high-volume, generic phishing emails to thousands of recipients simultaneously, relying on scale rather than precision to achieve successful credential theft and system compromise.

Blue Team Cybersecurity

Blue team cybersecurity represents the defensive backbone of enterprise security operations, continuously monitoring networks and responding to threats through structured frameworks and proactive threat hunting methodologies.

Botnet

A botnet is a network of compromised devices controlled by attackers to launch cyberattacks, spread malware, or steal information.

Bring Your Own Device (BYOD)

BYOD policies enable workforce flexibility by allowing personal devices for work purposes while introducing complex security challenges.

Business Email Compromise (BEC)

BEC is currently the most expensive type of cybercrime. These socially engineered attacks evade traditional email security systems. Learn how and why BEC works, and how to stop it.

CISO (Chief Information Security Officer)

CISOs are senior executives who translate cybersecurity risks into business language while developing comprehensive security strategies that protect organizations from sophisticated email threats and AI-driven attacks.

Catfishing

Catfishing uses fabricated online identities to manipulate victims through emotional deception, creating enterprise security risks when employees share credentials or expose corporate data through compromised personal relationships.

Chargeback Fraud

Chargeback fraud occurs when authorized cardholders deliberately dispute legitimate transactions to obtain unauthorized refunds, exploiting consumer protection mechanisms.

Clone Phishing

Clone phishing occurs when attackers create a convincing clone of a legitimate email. They compromise or impersonate the original sender and use the copycat email to dupe victims into entering login credentials, paying an invoice, downloading malware, or sharing sensitive data. These emails are often identical to a previous email the victim has received, except a malicious attachment or link is included.

Cloud Access Security Broker (CASB)

A cloud access security broker (CASB) is a security policy that sits between cloud service providers and users. A wide ranging CASB can authenticate users, help monitor and stop suspicious activity, prevent malware, and more.

Cloud Email

Cloud-based email is an email delivery and storage method hosted and maintained by an outside provider. It allows organizations and users to securely send, receive, and store emails. This is unlike on-premise email hosting which is physically housed and maintained internally within an organization's servers and IT environment.

Cloud Security

Understand how cloud security works across IaaS, PaaS, and SaaS, which threats matter most, and the tools and practices that protect distributed environments.

Cloud Security Posture Management (CSPM)

Cloud Security Posture Management (CSPM) is a set of tools and processes designed to keep cloud-based environments secure by identifying misconfigurations and enforcing security policies.

Command And Control (C&C)

Command and Control infrastructure enables attackers to maintain persistent communication channels with compromised systems for remote management and data exfiltration.

Compliance Monitoring

Computer Virus

Consent Phishing

Consent phishing is a specialized type of phishing targeting user permissions for third-party applications. Third-party apps frequently ask permission to access certain features to run properly. But attackers can use fraudulent app permission requests to gain access to a person's account.

Critical Systems

Critical systems are high-value infrastructure components that require elevated privileges and provide essential trust functions, making them prime targets for sophisticated cyber attacks.

Cryptojacking

Cyber Risk Scoring

Cyber risk scoring measures how vulnerable an organization is to cyber threats by assigning a number based on its security controls and digital infrastructure.

Cyberattacks Explained: Types, Stages, and Real-World Examples

Cyberattacks exploit predictable gaps — from stolen credentials to supply chain flaws. Understand attack types, real incidents, and layered defenses that work.

Cybersecurity

Cybersecurity Awareness

Cybersecurity awareness is the knowledge and practices that help individuals and organizations recognize, prevent, and respond to cyber threats through training, vigilance, and security best practices.

DMARC

DMARC (Domain-based Message Authentication, Reporting, and Conformance) is a standard email authentication protocol. It helps mail administrators and domain owners prevent email spoofing from cyberattackers. Servers can look up the DMARC policy of an incoming email to validate that its DKIM signature is valid, the headers align with the proper domain, and the address matches the domain.

DNS MX Record

An MX record, or mail exchange record, is a type of DNS record that routes emails to specified email servers. MX records essentially point to the IP addresses of a mail server’s email domain.

DOS Attack

Denial-of-Service (DOS) attacks are cyber weapons that overwhelm systems with malicious traffic, denying services to legitimate users and costing enterprises millions in operational damage.

Dark Web Monitoring

Dark web monitoring continuously scans hidden internet marketplaces to detect when your organization's credentials or sensitive data appear for sale, enabling swift response before attackers exploit exposed information.

Data Archive

Data archiving is the process of moving inactive or infrequently accessed data to a separate storage system for long-term retention.

Data Breach

A data breach occurs when confidential and sensitive information is stolen by an unauthorized group or individual. Data breaches are one of the end goals of many cyberattacks.

Data Exfiltration

Learn how data exfiltration works, the main methods attackers use across networks, cloud, and endpoints, and the layered controls that detect and prevent it.

Data Governance

Data governance establishes the framework of policies, processes, and accountability that ensures data remains accurate, secure, and compliant throughout its lifecycle.

Data Leak

A data leak happens when sensitive information is exposed to unauthorized individuals due to internal errors. Data leaks are often a result of poor data security and sanitization practices, outdated systems, or a lack of employee training.

Deep Learning

Deep learning is a type of ML using neural networks with many layers to analyze complex data patterns

Deepfake Technology

Deepfake technology uses artificial intelligence, particularly generative adversarial networks (GANs), to create highly realistic synthetic media, including manipulated videos, images, and audio.

Digital Forensics

Digital forensics is the investigation and analysis of electronic data to uncover evidence of cybercrime, security breaches, or policy violations.

Distributed Denial-of-Service (DDoS) Attack

Doxxing

Doxxing weaponizes publicly available information to expose private details about executives and employees, creating enterprise security risks.

Dwell Time Reduction

Dwell time reduction means shortening how long attackers stay hidden in a system after breaking in, which limits the damage they can cause.

Email Archiving

Email archiving is the process of securely storing emails, making it easy to search for and retrieve them. It helps store old emails that you don’t need immediate access to, but don’t want to delete.

Email Encryption: What It Is, How It Works, and Why You Need It

Email encryption protects sensitive messages from interception and fraud. Understand protocols, compliance requirements, and how to build a layered strategy.

Email Filters

Email filtering is the act of processing emails, incoming and sometimes outgoing, to classify and categorize them. This is usually done by an SMTP server. Email filtering is often used to detect spam, viruses, and malware before they reach a user.

Email Forensics Explained: Types, Techniques, and Tools

Email forensics turns raw message data into defensible evidence. Learn the techniques, phases, and pitfalls investigators rely on to trace what really happened.

Email Protection

Email protection is a combination of software and processes designed to defend an organization’s inboxes from email-based cyberattacks. This ranges from email security software that scans and detects malicious content and intent in messages to security awareness training for end users.

Email Quarantine

Email quarantine provides a controlled isolation mechanism that stores potentially harmful messages, preventing delivery while enabling security review processes.

Email Scams

Email scams are cyberattacks that use social engineering to deceive recipients into sharing sensitive information, sending money, or downloading malware.

Email Spoofing

Email spoofing is the act of forging a sender's address to trick recipients and deliver spam or phishing emails. A strong email security framework helps detect and block spoofed messages.

Ethical Hacker

Ethical hackers are authorized cybersecurity professionals who use penetration testing methodologies to identify vulnerabilities and strengthen enterprise security defenses before malicious actors exploit them.

Executive Impersonation

Learn how executive impersonation works, the main attack types, key warning signs, and the controls that help organizations detect and prevent costly fraud.

False Positive in Cybersecurity

False positives in cybersecurity refer to the creation of security alerts that incorrectly identify benign or expected activity as potential threats.

FedRAMP (Federal Risk and Authorization Management Program)

FedRAMP standardizes cloud security authorization for federal agencies, replacing redundant audits with a single reusable assessment.

Firewall

GDPR (General Data Protection Regulation)

GDPR is a data privacy law in the European Union that regulates the collection and processing of personal data. Businesses that operate in the EU need a strong cybersecurity framework to comply with the GDPR to avoid substantial penalties.

Generative AI Attacks

Generative AI attacks use artificial intelligence to automatically create convincing phishing emails, deepfakes, and malicious code that bypass traditional security defenses.

Generative Adversarial Networks (GANs)

Generative adversarial networks (GANs) are a class of machine learning models that generate highly realistic synthetic data, including images, text, and video.

Generative Pre-Trained Transformer (GPT)

A generative pre-trained transformer (GPT) is an advanced AI language model that uses deep learning to generate human-like text. Developed by OpenAI, GPTs are trained on vast datasets and fine-tuned for various applications, including chatbots, content generation, and cybersecurity threat detection.

Graymail

Graymail is a promotional email from a legitimate sender that varies in value to different users. Different from spam, the variance in content and in relevance to users makes it more challenging to filter with rules or policies. It may be a bulk email that a recipient has subscribed to in the past, like a newsletter, or a cold call from a vendor.

HIPAA Compliance

HIPAA compliance requires implementation of administrative, physical, and technical safeguards protecting patient health information while ensuring data privacy, security, and breach notification protocols.

Hacktivist

Hacktivists use hacking techniques to advance political or social causes rather than financial gain.

Honeypot in Cybersecurity

Honeypot in cybersecurity is used to describe iintentionally vulnerable decoy systems to attract attackers, gather threat intelligence, and enhance organizational security defenses.

How CEO Fraud Attacks Work and How to Stop Them

CEO fraud exploits executive authority to bypass financial controls. Understand how attacks work, why they succeed, and how to build defenses that stop them.

How DNS Spoofing Works and Why It Still Evades Detection

DNS spoofing silently redirects users to attacker-controlled sites. Understand how cache poisoning works, real attack examples, and layered defenses.

IP Reputation

IP reputation measures the behavioral quality of an IP address and how many unwanted requests it sends. If an IP address sends authentic, spam-free emails, it gets a positive IP reputation score. On the other hand, if associated with bulk spam, malware, dangerous domains, or suspicious locations, an IP address will have a poor IP reputation.

ISC2

ISC² (International Information System Security Certification Consortium) is the world's largest nonprofit cybersecurity certification organization, providing globally recognized credentials that validate security expertise and drive professional development for its members.

Identity Management

Identity management forms the foundation of your security by controlling who accesses what, when they access it, and how they prove they belong by protecting against credential attacks while enabling productivity.

Identity and Access Management

Learn how Identity and Access Management controls who reaches which systems, the main IAM categories, access models, and how it supports zero trust.

Impersonation Attacks

An impersonation attack is a type of cybercrime where a criminal poses as a known person or organization to steal confidential data or money.

Incident Response

Incident response is the structured process organizations use to detect, contain, and recover from cyberattacks, minimizing damage through coordinated teams, proven methodologies, and integrated security tools.

Indicators of Compromise (IOCs)

Indicators of Compromise (IOC) are forensic clues and evidence of a potential breach within an organization's network or system. IOCs give security teams essential context in discovering and remediating a cyberattack.

Insider Threat

Understand what drives malicious insider threats, how they operate, and the behavioral and technical warning signs security teams should monitor.

Integrated Cloud Email Security (ICES)

Integrated cloud email security (ICES) is a cloud-based email security solution that supplements the native security capabilities of a cloud email provider like Microsoft or Google. ICES is a relatively new term coined by Gartner to describe the evolving offerings in the email security market.

Internet of Things (IoT)

Discover how the Internet of Things connects devices across layers, which attacks target IoT environments, and how organizations reduce risk across device lifecycles.

Intrusion Detection System

Intrusion detection systems monitor network traffic and system activity in real time to identify malicious behavior, alerting security teams to threats that bypass primary defenses.

Jailbreaking AI

Jailbreaking AI is the process of bypassing built-in safety mechanisms in AI models to force them to generate restricted or unethical outputs.

Keylogger

Keyloggers are surveillance tools that secretly record keystrokes to steal passwords, financial data, and confidential information from compromised systems.

Large Language Models (LLMs)

Large language models (LLMs) are advanced machine learning models trained on extensive text datasets to understand and generate human-like language.

Lateral Movement

Lateral movement enables attackers to pivot across your network after breaching the perimeter, using stolen credentials and legitimate tools to reach high-value assets while evading detection.

Least Privilege Access

Least privilege access restricts user permissions to the minimum necessary levels, reducing attack surfaces in modern cybersecurity architectures.

Lightweight Directory Access Protocol

Lightweight Directory Access Protocol (LDAP) is a critical enterprise directory service protocol that enables centralized authentication and access control across distributed systems.

Living Off The Land Attack

Living Off The Land attacks exploit legitimate system tools already present in target environments to conduct malicious operations while evading traditional security detection methods.

Log Files

Log files provide structured records of system events and activities, delivering essential forensic evidence and real-time visibility for cybersecurity threat detection and incident response.

look alike domains

Lookalike domains are subtly manipulated domain names designed to impersonate legitimate brands, used by threat actors to launch phishing attacks, harvest credentials, and facilitate business email compromise.

MDM - Mobile Device Management

MDM or Mobile Device Management enables organizations to secure, monitor, and enforce policies on employees' mobile devices across multiple platforms and operating systems.

MFA Bypass

A multi-factor authentication (MFA) bypass is a broad term referring to an attack method where a cybercriminal navigates around MFA requirements to gain unauthorized access to an account.

MFA Fatigue Attacks

Multi-factor authentication (MFA) fatigue attack is a social engineering tactic where attackers send numerous calls or push notifications to a person's authenticator app or phone, hoping the person will eventually accept one. The attackers then gain access to the account. In some cases, the attacker may pose as a trusted figure like a coworker in IT.

Machine Learning (ML)

Machine learning is a subset of AI focused on algorithms that enable systems to learn and improve from experience without being explicitly programmed.

Malicious AI

Malicious AI encompasses the intentional misuse or weaponization of artificial intelligence to conduct activities that harm individuals, organizations, or societies.

Malware

Malware is malicious software that infiltrates systems to steal data, disrupt operations, and compromise security.

Man-in-the-Middle (MITM) Attack

A man-in-the-middle (MITM) attack happens when a cybercriminal positions themselves between two parties to intercept and eavesdrop on private communications. They can then trick users into revealing sensitive data like passwords or banking credentials.

Mean Time To Detect

Mean Time to Detect (MTTD) measures the average time it takes an organization to identify a security incident or system failure after it occurs.

Mean Time to Respond

Mean Time to Respond (MTTR) measures how long it takes to detect, investigate, and resolve security incidents.

Mitre Att&ck

MITRE ATT&CK is a free database of real hacker tactics that helps organizations detect and defend against cyberattacks.

Multi-Factor Authentication (MFA)

Multi-factor authentication secures accounts by requiring two or more verification methods beyond passwords.

NIST Framework

The NIST Cybersecurity Framework provides organizations with voluntary guidelines and best practices to manage cybersecurity risk through five core functions: Identify, Protect, Detect, Respond, and Recover, plus a sixth governance function in version 2.0.

Natural Language Processing (NLP)

Natural language processing (NLP) is a field of artificial intelligence that focuses on enabling computers to understand, interpret, and respond to text or speech in a way that feels natural to humans.

Natural Language Understanding (NLU)

Natural language understanding (NLU) enables AI to extract meaning, context, and intent from text, powering advanced cybersecurity threat detection.

Network Level Authentication

Network Level Authentication is a security enhancement that validates credentials before establishing sessions, preventing unauthorized resource consumption and protecting against remote attacks.

Network Security

Network security protects computer networks from unauthorized access, data theft, and cyberattacks through multiple defense layers, including firewalls, encryption, and access controls.

Network Segmentation

Network segmentation divides enterprise networks into isolated zones with controlled boundaries, preventing lateral movement during breaches and containing threats to minimize damage across your infrastructure.

Neural Networks

A neural network is a type of machine learning model designed to recognize complex patterns through layers of interconnected neurons.

OAuth

OAuth is an open authorization standard that enables applications to access user resources across different platforms without sharing passwords, using secure tokens instead of credentials.

OPSEC

OPSEC (Operational Security) systematically denies adversaries critical intelligence about organizational capabilities, preventing sophisticated attacks before threat actors gather enough information to succeed.

OSI Model

The Open Systems Interconnection (OSI) model provides a seven-layer framework for understanding network communication, enabling diverse systems to exchange data through standardized protocols and interfaces.

Packet Loss

Packet loss is a data transmission error when pieces of data (packets, in this case) don’t make it to their intended destination. Packet loss is usually caused by network congestion, software bugs, cyberattacks, or hardware issues.

Patch Management Explained: Process, Types, and Benefits

Patch management reduces security exposure and keeps systems stable. Learn the lifecycle, patch types, and best practices that keep remediation moving.

Payment Fraud

Learn how payment fraud schemes work, from BEC and VEC to APP, ATO, and deepfake-driven attacks, and the controls that detect and prevent them.

Penetration Testing

Explore how penetration testing uncovers real security weaknesses through structured phases, common tools, and testing types that validate defenses under pressure

Phishing

Phishing is a social engineering attack where criminals send fraudulent messages—usually by email—purporting to be a legitimate business, organization, or person. The goal: trick a user into sharing sensitive data like login credentials or deploying malware.

Phishing Simulation

See how a phishing simulation works, the main types and metrics that matter, and how to design programs that build judgment instead of resentment.

Predictive Analytics

Predictive analytics is a branch of AI and machine learning that analyzes historical data to forecast future outcomes.

Pretexting

Pretexting is a sophisticated social engineering technique where attackers create fabricated scenarios and false identities to manipulate victims into divulging sensitive information, making fraudulent payments, or granting unauthorized access.

Proxy Server

A proxy server acts as an intermediary or gateway between a user and the Internet. It’s the middleman between an end user and a network resource and it can provide an added layer of security.

QR Code Phishing Attacks: Types, Tactics, and Prevention

QR code phishing attacks exploit scanning habits to bypass email defenses. Learn how quishing works, real-world examples, and how to reduce your risk.

Ransomware

Understand how ransomware works, the main types and tactics attackers use, and the steps that reduce entry points and speed recovery.

Red Team Cyber Security

Red team cybersecurity simulates real-world cyberattacks to test an organization's defenses, detection capabilities, and incident response through ethical hacking exercises.

Risk Assessment

Learn how a cybersecurity risk assessment identifies threats, weighs impact, and prioritizes risks so your team can act on what matters most.

Role-Based Access Control (RBAC)

RBAC restricts system access by assigning permissions to defined job roles rather than individuals, enforcing least privilege while simplifying administration and meeting compliance requirements.

SMTP (Simple Mail Transfer Protocol)

SMTP is a common language used to send email. It’s a universal set of rules that allow servers and email clients to communicate via the internet. It helps increase email deliverability and reduce spam by verifying email senders. Think of SMTP as the language your computer uses to tell a server where an email goes, what’s in the email, what’s attached, and more.

SOAR (Security Orchestration, Automation and Response)

SOAR platforms unify security tools, automate repetitive tasks, and orchestrate incident response workflows to help security teams detect and contain threats faster while reducing analyst fatigue.

SQL Injection

SQL injection attacks exploit malicious input to manipulate database queries, enabling unauthorized access to sensitive data and system compromise.

Scareware

Scareware is a social engineering attack that uses fake security alerts to manipulate users into downloading malware or paying for fraudulent software solutions.

Secure Email Gateway (SEG)

A secure email gateway (SEG) is a security solution that monitors and filters inbound and outbound email traffic to protect organizations from threats like phishing, malware, and spam.

Security Awareness Training

Learn how security awareness training reduces cyber risk with phishing simulations, role-based modules, and real-time coaching for your workforce.

Security Controls

Security controls are systematically defined safeguards prescribed by government standards that protect organizational assets through administrative, technical, and physical measures.

Security Information and Event Management (SIEM)

SIEM systems centralize threat detection, compliance monitoring, and incident management across enterprise environments.

Security Operations Center (SOC)

A Security Operations Center serves as the centralized nerve center where security teams continuously monitor, detect, and respond to cyber threats, dramatically reducing breach costs and detection times through coordinated defense operations.

Sender Policy Framework (SPF)

Sender Policy Framework (SPF) is an email authentication protocol that helps verify an email’s true sender. Receiving servers use SPF to check that an email comes from a server approved by the purported sending domain.

Sentiment Analysis

Sentiment analysis is a branch of natural language processing (NLP) that enables AI to determine the emotional tone behind text-based communications.

Shadow IT

Shadow IT is when employees use unapproved software, devices, or online services at work without the IT department’s knowledge or permission.

Smishing

Smishing is a type of phishing attack conducted over text messages. It's increasingly common due to the ease of setting up spoofed numbers and the lack of spam filters for SMS messaging.

Social Engineering

In information security, social engineering refers to deceptive and manipulative practices used by bad actors to trick people into sharing sensitive data or sending money to a threat actor. Social engineering is a cornerstone of many successful cyberattacks, and it's unique from other attacks in that it doesn't require technical skills.

Spam Mail

Spam email is unsolicited and often bulk-sent electronic messages designed to advertise, scam, or deliver malicious content.

Spear Phishing

A spear phishing email uses real details to bypass filters and human judgment. Learn how these attacks work and what defenses actually stop them.

Spyware

Spyware is surveillance malware that covertly monitors enterprise systems to steal credentials, intellectual property, and sensitive business data.

Supervised Learning

Supervised learning involves training an AI model on a dataset that includes both input data and corresponding labeled outputs.

Supply Chain Attacks Explained: Types, Examples, and Prevention

Supply chain attacks exploit trusted vendors, software, and services to breach organizations. Understand the attack types, real examples, and layered defenses.

Tailgating Attack

Tailgating attacks exploit human behavior to gain physical access to secure facilities, bypassing expensive technological security investments and creating insider-style access.

Telemetry

Telemetry is the automated collection and transmission of data from remote devices and systems, enabling real-time monitoring, performance analysis, and security threat detection.

Text Message Scam

Fraudsters use text message scams as fraudulent SMS communications to steal credentials, deliver malware, or manipulate recipients into financial losses.

The Role of DKIM in Cybersecurity and Email Authentication

DKIM uses cryptographic signatures to verify sending domains and detect tampering. See how it works with SPF and DMARC to block spoofing and phishing.

Threat Actor

Threat actors are human adversaries who deliberately exploit vulnerabilities for profit, espionage, or disruption.

Threat Actor Attribution

Threat actor attribution determines which individuals, groups, or countries launched cyberattacks by analyzing technical evidence, behavior patterns, and intelligence data.

Threat Hunting

Threat hunting proactively searches for hidden cyberattacks that automated defenses miss, assuming adversaries are already inside your environment and systematically tracking them down before damage occurs.

Top-Level Domain (TLD)

Top-level domains are the suffixes that follow domain names: attackers weaponize them at scale to bypass email security defenses and execute phishing campaigns.

Transport Layer Security

Transport Layer Security (TLS) is a protocol that secures internet communications, protecting sensitive data from interception, tampering, and unauthorized access across networks.

Trojan Horse

Trojan horses are deceptive malware that disguises itself as legitimate software, representing the dominant cybersecurity threat facing enterprises due to their sophisticated social engineering and multi-stage attack capabilities.

Turing Test

The Turing Test is a benchmark for evaluating a machine’s ability to exhibit intelligent behavior indistinguishable from that of a human. Proposed by Alan Turing in 1950, the test assesses whether an AI can convincingly mimic human conversation in a blind evaluation.

Typosquatting

Typosquatting weaponizes simple typing errors to redirect users to malicious domains that steal credentials, deliver malware, or damage brand reputation through deceptive look-alike websites.

URL Rewriting

Learn how URL rewriting checks links in email at click time, where it succeeds, where attackers bypass it, and how it interacts with DKIM and DMARC.

Unsupervised Learning

Unsupervised learning enables AI to identify hidden patterns and anomalies without labeled data, enhancing cybersecurity and threat detection.

VPN

A Virtual Private Network (VPN) is a secure technology that encrypts internet traffic and hides user IP addresses to protect privacy and enable safe remote access.

Vishing Scams (Voice Phishing) Explained: Types and Warning Signs

Vishing scams use live phone calls to steal data and money. Learn how voice phishing works, the warning signs to spot, and how to protect yourself.

Vulnerability Management

Learn how vulnerability management reduces risk from known weaknesses through continuous discovery, prioritization, remediation, and verification.

WannaCry

WannaCry was a massive ransomware attack in 2017 that impacted over 200,000 computers across 150 countries, causing billions of dollars in damages. Several sources identified North Korea as the origin of the attack.

Watering Hole Attack

A watering hole attack is a threat vector that targets a specific group of users by compromising a website they frequently visit. The watering hole refers to predators who wait for prey by the watering hole—in this case, a compromised website.

Web Proxy

Learn what a web proxy is, how it intercepts and inspects HTTP and HTTPS traffic, the main proxy types, and how it compares to VPNs, firewalls, and SWGs.

Whaling

Whaling is a type of spear phishing attack that specifically targets or impersonates high-value targets—like C-suite executives–to steal sensitive data and, ultimately, money. Whaling attacks are a form of social engineering that utilize false urgency and deep research to trick victims.

What AI TRiSM Means for AI Trust, Risk, and Security Management

AI TRiSM governs AI across your organization with controls for explainability, security, and compliance. See how each pillar works in practice.

What Are Brute-Force Attacks and How Do They Work?

Brute-force attacks exploit weak credentials across online and offline targets. Learn the attack types, detection signals, and layered defenses that stop them.

What Is Credential Stuffing and How Does It Work?

Credential stuffing turns one leaked password into risk across many accounts. Learn how attacks work, evade detection, and which defenses actually hold up.

What Is DLP? Definition, Key Components, and Common Use Cases

DLP combines software, policies, and processes to protect sensitive data. Learn how it works, key components, and what a strong DLP program requires.

What Is Data Protection? Types, Methods, and How It Works

Data protection covers the controls, governance, and legal obligations that keep information secure. Explore methods, regulations, and how programs are built.

What Is Email Security in 2026 and Why AI Changes Everything

Email security protects against phishing, BEC, and AI-driven attacks. Learn the key threats, authentication protocols, and solutions that defend modern inboxes.

What Is Pharming and How Does It Work Without a Single Click?

Pharming silently redirects users to fake sites by corrupting DNS — no click required. Understand how it works and why standard defenses often fall short.

What Is Remote Desktop Protocol and How Does It Work?

Remote Desktop Protocol enables remote Windows access—but exposed RDP is a top ransomware entry point. Learn how it works and how to secure it.

What Is a Sandbox Environment? How It Works and Why It Matters

A sandbox environment isolates suspicious files to observe behavior without risk. See how it works, its types, and where it fits in your security stack.

Whitelisting

Whitelisting creates a default-deny security model that permits only pre-approved applications, users, and connections to access systems, providing proactive protection against malware and unauthorized access.

Wire Fraud: Definition, Common Types, and Prevention

Wire fraud uses electronic communications to deceive victims and redirect funds. Learn how schemes work, what the law requires, and how to protect your org.

Zero Trust Security Explained: Core Concepts and First Steps

Zero trust security eliminates implicit network trust through continuous verification. Explore core principles, NIST architecture, and how to start your adoption.

Zero-Day Vulnerability

Zero-day vulnerabilities are unknown software flaws that cybercriminals exploit before vendors can patch them, creating severe security risks for enterprise systems.