Our Approach
Your Ultimate Guide to Human Layer Security
Find out why we created this new category nearly two years ago.
Solve For Your Pain Points
CEO’s Guide to Data Protection and Compliance
Everything you need to know about compliance.
Human Layer Security Platform
Human Layer Security Platform Overview
Stops data breaches and security threats caused by employees on email.
Hear what they have to say
Building a Human Layer Security Culture at ARM
Focusing on Security Basics with Game Changing Technology.
Resource Categories
How to Hack a Human Report
Learn how hackers use social media to launch targeted social engineering and business email compromise attacks.
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Read 6 Reasons to Download “How to Hack a Human” Now
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Securing the human layer
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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.

Trusted by world-leading businesses.

To protect their people on email.

“Before we adopted Tessian’s technology, we didn't believe we had any problems with misdirected emails. After a pilot, we realized that was only because these issues weren’t being reported. We can see ROI in one email.”
Andrew Cheung, Partner & General Counsel
Dentons
“Tessian proved its value after a few weeks of being deployed firm-wide. For the first time ever we now have visibility and control over inadvertent data loss through misaddressed emails and information being sent to unauthorized email accounts.”
Neil Wellard, Head of Information Security
Man Group
“The original use case for bringing Tessian in was to stop people sending the right information to the wrong people. We’ve had a tremendous success story in terms of reducing the number of events that happen, and we’ve also engaged with our highest risk population of people.”
Tim Fitzgerald, Chief Information Security Officer
Arm Holdings
“We were looking for the right data loss prevention solution for two years. We loved the machine learning-powered approach Tessian offered.”
Chris Turek, Chief Information Officer
Evercore
“I’ve had emails from employees around the company saying how intuitive and helpful Tessian has been. That’s a great validation of the technology and the value it brings.”
James Holmes, Chief Information Officer
North
“Our security stack was doing a pretty good job, but it wasn’t protecting individuals from spear phishing attacks. We knew very quickly that Tessian would fill a vitally important gap in our security toolkit.”
Erik Ruis, Head of IT
Polarcus
“Most of the DLP solutions on the market don’t work well in the context of unstructured data, so having a more intelligent solution [Tessian] became very relevant for us.”
Ara Margossian, Partner
Webb Henderson
“The reason why we chose Tessian Guardian is because it is the only type of product of its kind. It could be an issue if people send an email to the wrong person. With Tessian Guardian, we hopefully solved this potential problem.”
Morten HØgholm Pederson, Chief Technology Officer
Gubra
“Tessian's ability to seamlessly secure against human-centered risks on email with minimal disruption has helped minimize the possibility of data breaches."
Bill Tanner, Chief Information Officer
Allens
“By installing Tessian we have avoided potential breaches and the impact this has financially on our business. The investment has shown a clear ROI, and JTC sees Tessian as a core technology partner who will continue to add value to the business.”
Adam Jeffries, Chief Information Officer
JTC

Don't take it from us.
Hear it from them.

Businesses rely on Tessian to protect their human layer from risks like data exfiltration, accidental data loss and phishing. 

Legal
MW Solicitors
Mitigating the Risk of Data Exfiltration in a Regulated Industry
Read the Case Study
Hill Dickinson
Securing Systems Amid Tight Regulation
Read the Case Study
Allens
Australia’s Oldest Law Firm Invests in Human Layer Security
Read the Case Study
Dentons
Investing in Protection Against Data Loss
Read the Case Study
Penningtons Manches
Building an Agile Security System
Read the Case Study
Caplin & Drysdale
Preventing Accidental and Deliberate Data Loss
Read the Case Study
Foot Anstey
Moving Beyond Rule-Based Systems to Protect Employees
Read the Case Study
Morrisons Solicitors
Staying Proactive with Data Loss Prevention
Read the Case Study
Bould Wade Tennent
Safeguarding a Reputation with Intelligent Data Loss Prevention
Read the Case Study
Travers Smith
Securing the Email Environment from Human Error
Read the Case Study
Grosvenor Law
Seamlessly Implementing Email Security
Read the Case Study
Financial Services
How Tessian Gave GoCardless Better Control and Visibility of Their Email Threats
Read the Case Study
Why Schroders Adopted Tessian 5 Years Ago, And How The Platform Has Evolved Since Then
Read the Case Study
Webb Henderson
Defining Customer-First Culture with Email Security
Read the Case Study
Man Group
Solidifying Security in Investment Management
Read the Case Study
Evercore
Mitigating Inbound and Outbound Email Threats
Read the Case Study
Premier Asset Management
Protecting Against Data Loss Caused by Human Error
Read the Case Study
Traiana
Reducing the Risk of Human Error on Email
Read the Case Study
Armstrong Watson
Proactively Protecting Customer Data
Read the Case Study
JTC
Better Email Security with Intelligent Technology
Read the Case Study
DC Advisory
Protecting Sensitive Client Data
Read the Case Study
Technology
Gubra
Strengthening Security in Biotechnology
Read the Case Study
Rightmove
Preventing Data Exfiltration at a FTSE 100 Tech Company
Read the Case Study
Arm
Focusing on Security Basics with Game Changing Technology
Read the Case Study
Com Laude
Ensuring Data Loss Protection
Read the Case Study
More
Cordaan
How Tessian Is Preventing Breaches and Influencing Safer Behavior in Healthcare
Read the Case Study
Coastal Housing
Ensuring Data Security under GDPR
Read the Case Study
Laya Healthcare
Data Loss Prevention in Healthcare: A Serious Business
Read the Case Study
Polarcus
Tackling Spear Phishing when the Stakes are High
Read the Case Study
North
Human-Centered Cybersecurity in a Historic Industry
Read the Case Study
“Before we adopted Tessian’s technology, we didn't believe we had any problems with misdirected emails. After a pilot, we realized that was only because these issues weren’t being reported. We can see ROI in one email.”
Andrew Cheung, Partner & General Counsel
“Tessian proved its value after a few weeks of being deployed firm-wide. For the first time ever we now have visibility and control over inadvertent data loss through misaddressed emails and information being sent to unauthorized email accounts.”
Neil Wellard, Head of Information Security
“The original use case for bringing Tessian in was to stop people sending the right information to the wrong people. We’ve had a tremendous success story in terms of reducing the number of events that happen, and we’ve also engaged with our highest risk population of people.”
Tim Fitzgerald, Chief Information Security Officer
“We were looking for the right data loss prevention solution for two years. We loved the machine learning-powered approach Tessian offered.”
Chris Turek, Chief Information Officer
“I’ve had emails from employees around the company saying how intuitive and helpful Tessian has been. That’s a great validation of the technology and the value it brings.”
James Holmes, Chief Information Officer
“Our security stack was doing a pretty good job, but it wasn’t protecting individuals from spear phishing attacks. We knew very quickly that Tessian would fill a vitally important gap in our security toolkit.”
Erik Ruis, Head of IT
“Most of the DLP solutions on the market don’t work well in the context of unstructured data, so having a more intelligent solution [Tessian] became very relevant for us.”
Ara Margossian, Partner
“The reason why we chose Tessian Guardian is because it is the only type of product of its kind. It could be an issue if people send an email to the wrong person. With Tessian Guardian, we hopefully solved this potential problem.”
Morten HØgholm Pederson, Chief Technology Officer
“Tessian's ability to seamlessly secure against human-centered risks on email with minimal disruption has helped minimize the possibility of data breaches."
Bill Tanner, Chief Information Officer
“By installing Tessian we have avoided potential breaches and the impact this has financially on our business. The investment has shown a clear ROI, and JTC sees Tessian as a core technology partner who will continue to add value to the business.”
Adam Jeffries, Chief Information Officer
“Before we adopted Tessian’s technology, we didn't believe we had any problems with misdirected emails. After a pilot, we realized that was only because these issues weren’t being reported. We can see ROI in one email.”
Andrew Cheung, Partner & General Counsel
“Tessian proved its value after a few weeks of being deployed firm-wide. For the first time ever we now have visibility and control over inadvertent data loss through misaddressed emails and information being sent to unauthorized email accounts.”
Neil Wellard, Head of Information Security
“The original use case for bringing Tessian in was to stop people sending the right information to the wrong people. We’ve had a tremendous success story in terms of reducing the number of events that happen, and we’ve also engaged with our highest risk population of people.”
Tim Fitzgerald, Chief Information Security Officer
“We were looking for the right data loss prevention solution for two years. We loved the machine learning-powered approach Tessian offered.”
Chris Turek, Chief Information Officer
“I’ve had emails from employees around the company saying how intuitive and helpful Tessian has been. That’s a great validation of the technology and the value it brings.”
James Holmes, Chief Information Officer
“Our security stack was doing a pretty good job, but it wasn’t protecting individuals from spear phishing attacks. We knew very quickly that Tessian would fill a vitally important gap in our security toolkit.”
Erik Ruis, Head of IT
“Most of the DLP solutions on the market don’t work well in the context of unstructured data, so having a more intelligent solution [Tessian] became very relevant for us.”
Ara Margossian, Partner
“The reason why we chose Tessian Guardian is because it is the only type of product of its kind. It could be an issue if people send an email to the wrong person. With Tessian Guardian, we hopefully solved this potential problem.”
Morten HØgholm Pederson, Chief Technology Officer
“Tessian's ability to seamlessly secure against human-centered risks on email with minimal disruption has helped minimize the possibility of data breaches."
Bill Tanner, Chief Information Officer
“By installing Tessian we have avoided potential breaches and the impact this has financially on our business. The investment has shown a clear ROI, and JTC sees Tessian as a core technology partner who will continue to add value to the business.”
Adam Jeffries, Chief Information Officer
How are IT and Security leaders using Tessian's technology to secure email? Watch industry leaders discuss the power of Tessian.
SPG Dry Cooling
In this Q&A, Thierry Clerens, Global IT Manager at SPG Dry Cooling, explains why he chose Tessian over other inbound email security solutions.
Cordaan
In this Q&A, Cas de Bie, Cordaan’s Chief Information Officer, explains why healthcare employees are especially vulnerable to inbound attacks.
Taylor Vinters
Steve Sumner, Chief Information Security Officer, Taylor Vinters LLP, describes how Tessian is securing email for the Legal500 company and the innovative solutions on offer.
Schroders
Schroder's Chief Information Security Officer Rob Hyde discusses how implementing Tessian has led the organization to stay proactive with their cybersecurity strategy. Schroders uses Tessian to help prevent data loss over email.
Foot Anstey
Foot Anstey’s Partner and IT and Business Services Director, Duncan Eadie discusses some of the risks that law firms face due to human error. Foot Anstey deployed Tessian to help prevent accidental data loss from misdirected emails.
Winterflood Securities
Winterflood's Head of Information Security Paul Regan discusses some of the cybersecurity challenges that financial firms face today. Paul highlights that human error is inevitable, but with Tessian, Winterflood can ensure that their data and people remain secure.

See Tessian in action.

Request a demo to learn how Tessian can protect your organization from human failure on email.

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