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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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Inbound and Outbound Email Security for Law Firms

Detect sophisticated email attacks such as phishing and account takeover, and prevent data loss and exfiltration that legacy solutions can’t, with no disruption to your law firm workflows.



The Legal Sector Needs a Proactive 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, 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 has helped over 200 of the world’s leading law firms protect against data loss through email. Gain visibility into your firm’s risk drivers with Tessian.
  • Protect Client Data from 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 blacklists.



  • 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 and Account Take Over (ATO). Tessian tracks user 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 Human Layer Security Platform prevents data loss, phishing, impersonation and insider threats in law firms.

How Tessian’s Human Layer Security Platform Protects Sensitive Email Data in Law Firms

Detect and Prevent Insider Threats, Malicious or Accidental


Using machine learning, Tessian automatically prevents data exfiltration and accidental data loss over email. Tessian Guardian and Enforcer use our proprietary Human Layer Security Engine that detects 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 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 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: Defender 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 users from becoming victim to an attack by explaining what is unusual about the email with contextual warnings. This in-the-moment training helps them to detect future attacks over time by continuously educating them about threats, reinforcing your policies, and nudging them toward safe email behavior. 

  • Automatically build individualized policies at scale to reduce high-risk email use and track trends in unsafe activity over time.
  • The alerts are automated and highly targeted, resulting in low flag rates
  • As misdirected emails, incorrect attachments and sensitive emails to unauthorized accounts are detected, employees are alerted in real-time with clear, simple explanations and precise reasons for anomalies and correct recipients are suggested. This way, they can correct the recipient(s), review attachments, or delete the email before the email is sent. 

Holistically Understand Your Human Layer Risk


Tessian’s Human Layer Risk Hub offers protection, training, and risk analytics all in one platform. It 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 human layer risk 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.




  • 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.



  • Human Layer Risk Hub Datasheet

    With a complete view of human layer risk and granular visibility into risk areas, SRM leaders are now able to make informed decisions and proactively customize remedial actions at scale to protect employees and prevent data breaches.



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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See Tessian’s Human Layer Security Platform in Action.
Request a personalized Tessian Human Layer Security Platform demo and see first-hand how law firms can protect their most sensitive client email data.