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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.

Tessian Named Representative Vendor in the 2022 Gartner® Market Guide for Data Loss Prevention. Download →


Prevent and Detect Email Threats in Law Firms

Intelligently protect against advanced phishing attacks such as Business Email Compromise and account takeover. Stop data loss incidents that legacy solutions can’t, with no disruption to your law firm workflows.



The Legal Sector Needs an Intelligent Solution to Email Security


Lawyers have an ethical and legal obligation to protect the confidences of their clients. However, law firms work with valuable information—that may include trade secrets, intellectual property, merger and acquisition details, personally identifiable information (PII), and confidential attorney-client-privileged data, making them a frequent target of attack. 

Relying on policies, legacy solutions such as secure email gateways, built security controls within Microsoft and Google Workspace, encryption and employee training does not provide law firms the needed protection and clear visibility into email threats, data exfiltration or employee behavior on email- Making it hard to prevent data loss and avoid breaches.


Questions to ask yourself…
  • Do you have visibility into all occurrences of data loss over email in your firm?
  • How do you ensure that accidental sharing of sensitive client data to wrong parties doesn’t occur?
  • Are you able to track all employee exfiltration of data over email (e.g. sending matter information to their personal or unauthorized email accounts)?
  • What’s the impact of client information getting into the wrong hands?

How Tessian Can Help

Tessian helps the world’s leading law firms protect against data loss through email.
  • Protect Client Data from Misdelivery and Insider Threats

    Prevent data breaches involving personally identifiable information (PII), safeguard your company intellectual property, and help ensure continuous regulatory compliance. Tessian automatically protects sensitive client information by making sure that emails and attachments are only sent to the right people, and detects data exfiltration to personal or unauthorized accounts  without the need to create and maintain DLP policies and denylists.



  • Prevent Advanced Phishing and Account Takeover Attacks

    The legal sector handles a large amount of sensitive data, making them a frequent target of attacks, such as Phishing, Business Email Compromise and Account Take Over. Tessian understands the end-user’s normal behavior and detects even the most subtle anomalies that might signal an attack at the first instance of an attempt. Helping firms stop breaches at a very early stage, and help avoid potential compromise to the firm’s reputation along with compliance penalties, such as GDPR.



  • Stop Threats, Not Business

    Traditional approaches have come at the expense of user experience as unintelligent pop-ups cause user fatigue. When Tessian discovers anomalies, it displays contextual warning messages with precise flag reasons.

    And because Tessian warns users only when true events are detected, partners are protected, without disruption to their day-to-day work.



Free Resource Download
Download the Solutions Brief
Learn how Tessian’s Cloud Email Security Platform prevents data loss, phishing, impersonation and insider threats in law firms.

How Tessian Cloud Email Security Platform Protects Sensitive Data in Law Firms

Detect and Prevent Insider Threats, Malicious or Accidental


Using behavioral intelligence modeling and machine learning, Tessian automatically prevents data exfiltration and accidental data loss over email. Tessian Guardian and Enforcer detect anomalies in real-time based on insights from relationship graphs, external data sources, email content and user behavior. 

  • Guardian provides attachment scanning, deep content inspection and entity relationship anomaly detection to prevent sending wrong attachments in emails.
  • Enable specific use cases to fit the organization’s needs and manage user experience, with flexible configuration options.
  • Tessian’s relationship graphs are continuously updated as email behavior changes over time after Tessian is deployed, enabling Enforcer to automatically differentiate between business and non-business freemail accounts and ensure legitimate emails don’t get blocked.

Granular Visibility to Quickly Prevent, Mitigate and Remediate Inbound Email Attacks


Defender protects against both known and unknown email attacks, including Business Email Compromise (BEC), Account Takeover (ATO), spear phishing, and all impersonation attacks (ex. impersonations of the managing partner) that bypass Secure Email Gateways, Microsoft 365, and G Suite.

  • Threat Prevention: Tessian uses behavioral intelligence modeling and machine learning and will inspect the context of the email to determine indicators of an attack, notify the user, therefore not giving an opportunity of malware slipping through or the user to click.
  • Reduce Admin Overhead: Tessian removes the burden on security and IT teams by automating repetitive tasks such as maintaining triage and review. This eliminates the need for human verification of email threats, reducing FTE requirements.
  • Global Threat Network: This is an anonymized database of all of the spear phishing attacks Defender has identified. We see the same attackers going after the same sectors using similar techniques so by storing this threat intelligence we can protect firms from an attack detected in their peer’s network.


Contextual Warnings with User Experience in Mind


Tessian prevents user actions turning into security incidents by alerting end-users in real time, explaining what is unusual about the email, reinforcing your policies, and helps them take the right actions. This in-the-moment coaching helps them get better at spotting threats and helps build a stronger security culture.

  • Automated, personalized training at scale that reduces risk overtime.
  • The alerts are automated, non-disruptive and highly targeted, resulting in low flag rates.

Holistically Understand Your Risks on Email


Tessian’s Risk Hub delivers a broad spectrum of risk analytics across outbound and inbound email threats to solve problems such as accidental data loss, data exfiltration, and advanced phishing attacks.

  • Measure how actions impact risk on email with dynamic cybersecurity dashboards and present results to company executives and board members, as evidence of technology actually reducing risk, not simply reporting it.
  • Make informed decisions and take the right interventions with intelligent mitigation action recommendations.


Learn More About How Tessian Enables Proactive Protection of Sensitive Client Email Data

  • Protecting the Legal Sector from Data Loss and Inbound Email Security Threats

    Tessian helps firms detect sophisticated email attacks, and prevent data loss and exfiltration, with no disruption to employee workflows.




  • The Ponemon Institute: Data Loss Prevention on Email in 2022 Report

    This study, independently conducted by the Ponemon Institute, focuses on the rising need for a behavioral intelligence approach to proactively prevent email data loss.



  • Tessian Platform Overview

    Tessian prevents email threats like spear phishing, accidental data loss, data exfiltration and other non-compliant email activity. This document outlines the impact of human failure on email and how our technology protects businesses from these unique threats.



Get the Latest Legal Security Research from Tessian’s Threat Intelligence Team


Data loss prevention (DLP) is a top priority for security leaders across industries, including legal. However firms, are still dealing with limited visibility into the amount of data loss incidents that occur, which means preventing data loss and avoiding breaches can be an uphill battle. Our latest research can help.


Download Tessian’s latest research on legal security to learn…
  • Why email is the #1 threat vector security leaders are worried about protecting with a DLP solution
  • Why almost half (48%) of employees working in legal say security software impedes their productivity at work
  • Why 85% of security leaders say rule-based DLP is admin-intensive
  • How much more unauthorized emails are sent than security leaders estimate


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