How does Abnormal detect vendor email compromise when the sending domain is legitimate?

Abnormal builds behavioral baselines for every vendor relationship — communication frequency, typical contacts, financial request patterns, and writing style. When a compromised vendor account deviates from these baselines, Abnormal flags it regardless of whether SPF, DKIM, and DMARC pass. The detection is based on behavioral anomaly, not sender reputation.

Does deployment require changes to our mail flow or MX records?

No. Abnormal deploys via API integration with Microsoft 365 or Google Workspace in under 60 seconds. No MX record changes, no mail rerouting, no transport rules. Your existing email infrastructure stays untouched. For manufacturers running lean IT teams, this means no change-management risk and no production disruption.

Can Abnormal protect our environment if we have hundreds of active vendor relationships?

Yes. VendorBase automatically profiles every vendor communicating with your organization — no manual configuration required. It tracks behavioral patterns across all supplier relationships simultaneously and federates compromise intelligence across the entire Abnormal customer base. When a vendor is compromised at any of our 3,000+ customers, that intelligence protects you immediately.

What happens if Abnormal incorrectly flags a legitimate vendor email?

It happens — rarely. Abnormal operates at 99.99% detection accuracy (verified at Honeywell across 188,000 attacks in 90 days). When a false positive does occur, quarantined emails are easy to release with one click. The platform continuously learns from corrections to improve precision for your specific vendor relationships.

Manufacturing

Abnormal learns how your suppliers actually behave — and flags when they don't.

Your team stops vendor invoice fraud and supply chain compromise targeting AP and procurement staff — deployed via API in minutes, no MX changes.

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Of all ransomware attacks target manufacturing — most attacked sector three years running

Bitsight 2025

Year-over-year increase in BEC attacks targeting manufacturers

Abnormal Research 2024

Advanced attacks one Fortune 500 manufacturer prevented in 90 days

Abnormal (Honeywell)

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The Challenge

Your Gateway Passes Every Vendor Fraud Email That Costs You Millions

Vendor Invoice Fraud Inside Existing Payment Threads

Attackers compromise a supplier's email account and reply within a legitimate invoice conversation with updated bank routing details.

Compromised Supplier Credentials Used for Lateral Phishing

Once inside a vendor's mailbox, attackers send credential harvesting links to your procurement team disguised as shared BOMs, RFQs, or shipping documents.

Payment Redirect Requests Timed to Production Deadlines

Attackers study your procurement cycles and send bank-detail change requests days before a major raw materials payment is due.

Executive Impersonation Targeting Plant Controllers

Attackers spoof your CFO or VP of Operations requesting emergency wire transfers tied to equipment purchases or facility expansions.

Internal Account Takeover Spreading Fraudulent POs Across Plants

A compromised procurement account sends fraudulent purchase orders to multiple plant locations simultaneously.

Real Incident

AAcompromisedcompromisedsteelsteelsuppliersupplierrepliesrepliesinsideinsideananexistingexistinginvoiceinvoicethreadthreadwithwithupdatedupdatedbankbankdetailsdetails——SPFSPFpasses,passes,DKIMDKIMpasses,passes,thethedomaindomainisislegitimate,legitimate,thetheconversationconversationhistoryhistoryisisrealreal——andandyouryourgatewaygatewaydeliversdeliversaa$600K$600KpaymentpaymentredirectredirectstraightstraighttotoAPAPwithoutwithoutaasinglesinglealert.alert.

Based on a real customer incident

How It Works

Behavioral AI for Manufacturing

Know the Moment a Vendor Account Is Compromised

VendorBase builds behavioral baselines for every supplier relationship — communication patterns, typical financial requests, normal contacts, expected timing. When a compromised vendor account deviates from these patterns, Abnormal detects it even though every traditional indicator looks clean.

Threats Removed before Your AP Team Sees Them

Malicious emails are automatically remediated from inboxes in under 6 seconds — no SOC analyst intervention, no manual triage queue. For manufacturers running lean security teams of 1-5 staff, this eliminates the operational burden that makes legacy SEGs unsustainable.

See Internal Attacks Your Gateway Structurally Cannot

Abnormal monitors internal-to-internal email through API access — detecting compromised procurement accounts sending fraudulent POs or lateral phishing across plant locations. A gateway sitting in the mail flow literally cannot see this traffic.

Fortune 500企業の25%以上が、Abnormal AIの自動化されたセキュリティ判断を信頼して採用しています

Our Impact

What Manufacturing Leaders Are Saying About Abnormal AI

“Before Abnormal, when we analyzed a message and determined that it was malicious, we had to login to our other security tools to put blocks in place. Then we had to search for and remediate each instance of the message in our email system. It was very time-consuming, but with Abnormal, there’s no longer a need for our security team to manually manage those emails.”

Jeremy Smith

CISO, Avery Dennison

“Abnormal shows the value of velocity through their speed to ROI, which was important to our leadership. We implemented it quickly, received protection immediately, and continue to receive value in terms of productivity and innovation. Our investment in Abnormal was a smart decision.”

John Barrow

CISO, JB Poindexter & Co

AbnormalはFortune 500の25%以上を含む4,500社以上のお客様にご利用いただいています。

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Related Resources

Industry Briefs

Abnormal for Manufacturers

Discover the AI-based email security platform that protects manufacturers from the full spectrum of email attacks.

Webinars

The Detection Gap: Why AI-Powered Attacks Are Winning Against Legacy Email Security

Watch this on-demand webinar to learn how AI-powered BEC attacks bypass secure email gateways, and how behavioral AI can detect what legacy tools miss.

White Papers

The Essential Guide to Human Risk Management

Learn why traditional security awareness training fails to reduce real-world risk and how modern human risk management helps organizations measure and reduce risky behavior over time.

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See the Vendor Compromises Your Gateway Is Missing Right Now

Request a demo to see Abnormal detect supply chain threats in your environment — results visible in days, not weeks.