Tessian
AI email security that prevents human error and data loss
4.2(170 reviews)
Paid
Added 3/18/2026
About Tessian
Tessian (now part of Proofpoint) uses AI to prevent accidental data loss, misdirected emails, and phishing attacks caused by human error. Machine learning models understand normal email behavior and flag risky actions before they happen.
Key Features
- Misdirected email prevention
- Data loss prevention
- Phishing detection
- Insider threat detection
- Employee coaching
- O365 and Gmail integration
Pros
- ✓ Prevents costly human errors
- ✓ Minimal admin overhead
- ✓ Real-time protection
Cons
- ✗ Enterprise pricing
- ✗ Limited to email channel
