Abnormal Security
AI-powered email security platform specializing in behavioral detection of social engineering attacks
Pricing: Custom pricing / per-user licensing
Reviewed by the CyberSecTool editorial team against the public sources cited below · Last reviewed February 2026 · How we review listings
What is Abnormal Security?
Abnormal Security 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.
- ✓ 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
- • 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
- • No email archiving, DLP, or compliance capabilities
Reported in public reviews and vendor documentation. See sources below.
Key Features
Are you Abnormal Security? Improve this listing with screenshots, case studies and more.
Abnormal Security Comparisons
Sources & references
Where the information on this listing comes from. Always verify pricing and capabilities against the vendor before a purchasing decision.
Spot an error, or do you represent Abnormal Security? Request a correction.
Quick Info
| Pricing | Custom pricing / per-user licensing |
| Model | Per-user subscription |
| Founded | 2018 |
| Cloud | Yes |
| Self-Hosted | No |
Last updated: Feb 20, 2026
Abnormal Security Alternatives
View All AlternativesEnterprise email security platform for advanced threat prote...Mimecast
Cloud email security platform with threat protection, archiv...Microsoft Defender for Office 365
Microsoft's native email security for Microsoft 365 with XDR...Barracuda Email Security
Email threat protection platform available as gateway applia...Cisco Secure Email
Enterprise email security gateway with Cisco Talos threat in...