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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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Complete Cloud Email Security

Forrester has named Tessian a Strong Performer in The Forrester Wave™: Enterprise Email Security, Q2 2023

Trusted by World-Leading Enterprises

Prevent Advanced Threats and Data Loss

Next Generation Email Security

Eliminate the Full Spectrum of Email Threats


A Single Platform to Holistically Manage Email Threats

Defend Against Inbound Email Attacks

Tessian uses behavioral understanding and artificial intelligence to detect and prevent the full spectrum of email attacks including, ransomware , account takeover (ATO), business email compromise (BEC), and executive impersonation attacks that legacy email security solutions fail to stop.

Protect Your Most Sensitive Data on Email

Email is highly vulnerable to accidental and malicious data loss. Tessian’s behavioral based artificial intelligence detects anomalous patterns of employee activity to detect and prevent misdirected emails, misattached files, data exfiltration and other email data loss threats that rule-based DLP systems miss.


Respond to Email Security Threats Faster & More Efficiently

Tessian automates and enhances threat detection, prevention and response to free up security teams and allow them to focus on mission critical tasks. Tessian requires zero configuration, and deploys within minutes, integrating with your existing cloud or on-premise email environment.

Coach Employees About Risk In-The-Moment

Tessian automatically alerts employees when threats are detected with tailored and contextualized messages which detail the threat and what action to take. This in-the-moment coaching improves employee security behavior, reduces the frequency of threats over time and frees up time from repetitive and generic security awareness training.


Listen to the Experts

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.

Move Beyond the SEG

Replace the need for your Secure Email Gateway, simplify your email security stack and eliminate the full spectrum of email threats by integrating Tessian with Microsoft 365.
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See Tessian in Action

Intelligently prevent advanced threats on email, unburden your SOC team, and build a smarter security culture with Tessian.

Our Awards and Recognition

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