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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.

State of Email Security 2022: Every Company’s Riskiest Channel |  Read the Full Report →

Trusted By Disruptive Tech Companies Around The World.

Tessian helps technology organizations stop sophisticated email attacks such as business email compromise and account takeover, and prevent accidental or malicious data loss.


Highly Rated on Gartner Peer Insights™

4.7
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Featured Customer Story

ComLaude: How Tessian Prevents Inbound and Outbound Threats For a Strategic Partner of Leading Global Brands

Com Laude provides client-shaped domain services across sectors. Their solutions help clients maximize their ability to conduct business online with strategic domain name management, protection against cyber attacks, and by counteracting digital brand infringement.

They’ve been a customer since 2016, and have the full Tessian platform deployed to prevent accidental data loss, data exfiltration, and advanced spear phishing attacks.

Learn how Tessian has helped:
  • How Tessian has helped ensure ISO 27001 and GDPR compliance
  • Why Com Laude’s CTO considers Tessian a “much-needed extra layer of protection on top of Microsoft 365’s native controls”
  • How Tessian saves the SOC team time and effort with automated reporting and technology integrations
Featured Customer Story

Arm: Focusing on Security Basics with Game Changing Technology

Arm technology is at the heart of a computing and connectivity revolution that is transforming the way people live and businesses operate. Together with 1,000+ technology partners, Arm is at the forefront of designing, securing and managing all areas of computing, from the chip to the cloud.

Arm is protecting 6,000 employees with Tessian Defender and Tessian Guardian.

Featured Customer Story

Rightmove: Preventing Data Exfiltration at a FTSE 100 Tech Company

Rightmove is the UK’s largest online real estate portal and property website. For over 15 years, the organization’s aim has been to empower the UK’s decisions around property. Rightmove is listed on the London Stock Exchange and is a constituent of the FTSE 100 Index.

Rightmove is protecting 530 employees with Tessian Guardian and Tessian Enforcer.