Abnormal AI
AI-powered email security platform specializing in behavioral detection of social engineering attacks
ToolEmail SecurityCloud
Pricing: Pricing is not published. The site offers a demo request.
Reviewed by the Cyber Vendor Guide editorial team against the public sources cited below · Last reviewed September 2026 · How we review listings
What is Abnormal AI?
Abnormal AI, known as Abnormal Security until April 2025, is an AI-native email security platform that uses behavioral AI to detect and block socially-engineered email attacks that bypass traditional email security gateways. Rather than relying on signatures, threat feeds, or URL scanning, Abnormal builds behavioral profiles of every identity in the organization and detects anomalies in communication patterns, writing style, and email metadata. This approach is particularly effective against business email compromise, vendor fraud, and account takeover attacks that contain no malicious payloads for traditional tools to catch.
Best for: Organizations facing sophisticated social engineering and BEC attacks that bypass traditional email gateways
Pros
- Strong detection of socially-engineered attacks with no malicious payload
- API-based deployment requires no MX record changes. Deploys in minutes
- Behavioral AI catches novel attacks that signature-based tools miss
- Extremely low false positive rate due to identity-based detection
- Strong vendor and supply chain fraud detection capabilities
Things to check
- Does not replace a full email gateway. Typically layers on top of one
- Less effective against traditional malware and payload-based attacks
- Premium pricing for what is an additional security layer
- Behavioral models need time to learn organization communication patterns
Reported in public reviews and vendor documentation. See sources below.
Key Features
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Sources & references
Where the information on this listing comes from. Always verify pricing and capabilities against the vendor before a purchasing decision.
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Key facts
- Pricing
- Pricing is not published. The site offers a demo request.
- Model
- Per-user subscription
- Founded
- 2018
- Cloud
- Yes
- Self-hosted
- No
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Where Abnormal AI appears
Guides
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In depth
Certifications
SOC 2 Type II, ISO 27001, ISO 27701, ISO 42001, CSA STAR, FedRAMP Moderate, GovRAMP, TX-RAMP, Cyber Essentials Plus