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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.
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Book a Demo Today and See Tessian Cloud Email Security in Action

Email is the #1 threat vector in the enterprise, and modern day threats are slipping traditional email security solutions. Enter Tessian.

It intelligently prevents advanced email attacks like advanced phishing attacks, email impersonation, accidental data loss and insider threats.

  • Behavioral based email security that uses machine learning to detect anomalies and train users in the moment
  • Zero configuration, is deployed in minutes, and learns people’s email behaviors within hours.
  • A cloud-native solution, that integrates seamlessly 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.

Stop Inbound Threats with Tessian Defender.


Prevent email threats that legacy email security controls can’t detect using Machine Learning. Complete protection against spear phishing, advanced social engineering & Business Email Compromise attacks.


When unsafe emails are detected, employees can either be alerted in-the-moment with clear, simple explanations of potential risks or emails can be directly quarantined for inspection.



Stop Outbound Data Loss with Tessian Enforcer.


Automatically prevent accidental data loss due to misdirected emails and emails with sensitive information going to unauthorized and personal email accounts using our stateful Machine Learning. Protect your company IP, meet compliance standards, and gain granular visibility into high risk data exfiltration events.


Real-time warnings are shown to employees when data exfiltration threats are detected. Warning triggers can be tailored to suit your company’s security policies and workflow requirements; employees can be warned, emails can be blocked, or activity can be silently tracked.



Automated Threat Prevention and Remediation with Tessian.


Get unparalleled visibility into human behavior and prevent threats you’ve never been able to detect before. Skip manual investigation and move swiftly into remediation with previously impossible intel. Continuously reduce the risk of misdirected emails, data exfiltration, and impersonation attacks.


Get insights on risk drivers, benchmarking against industry peers, and leverage robust threat remediation tools that continuously improve your risk profile.



How Tessian stops email threats:

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.
Read about our Integrations and Compatibility →

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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.