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Automatically stop data breaches and security threats caused by employees on email. Powered by machine learning, Tessian detects anomalies in real-time, integrating seamlessly with your email environment within minutes and starting protection in a day. Provides you with unparalleled visibility into human security risks to remediate threats and ensure compliance.

See Tessian Cloud Email Security in Action

Modern day threats are bypassing traditional email security solutions. Book a personalized demo to see how Tessian:

  • Detects and prevents both advanced email threats and data loss
  • Automates your SOC workflow and saves time
  • Improves end-user security behaviors without disrupting workflow
  • Seamlessly integrates with Microsoft 365, Microsoft Exchange and Google

Highly Rated on Gartner Peer Insights™


Join other CISOs, CIOs, and IT Managers reviewing Tessian on Gartner Peer Insights™ and hear what they have to say about the future of cybersecurity.

Protect against advanced email threats

Prevent the targeted advanced email threats that traditional email security solutions miss. An intelligent approach to mitigating spear phishing, social engineering & business email compromise attacks.

Prevent data loss over email

Stop end-users sending emails to the wrong person and prevent data exfiltration to unauthorized accounts. Tessian prevents accidental data loss and reduces risk posed by insider threats, without overburdening the security operations center.

Enhance Microsoft 365 security

While Microsoft 365 built-in email security provides baseline protection against spam and malware, Tessian detects advanced email threats to add another layer and strengthen email security in the modern enterprise.

Hear From Our Customers

Tessian integrates with your email environment.

Tessian is committed to helping our customers protect their people and meet their compliance needs. You can directly integrate with your SIEM/SOAR via a RESTful HTTP API.

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Deploy Tessian today and achieve automatic protection in 24 hours.
Get email security with unparalleled visibility into human behavior. With Tessian, you predict and preempt security risks and prevent human error.