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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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Business Email Compromise

Business Email Compromise (BEC) Prevention

Automatically detect and prevent costly Business Email Compromise (BEC) attacks and make end-users aware of threats in-the-moment.



Know Your Risks

BEC Attacks: The #1 Email Threat


BEC attacks have cost more than $43 billion in losses since 2016, and they have become one of the most successful and financially damaging online crimes.


Once the cybercriminal has gained access to an email inbox, usually with a phishing scam, they will search the inbox for high value email threads such as email conversations with suppliers or other individuals in the company to gather information. Leveraging this information, they’ll send an email message that appears to come from a trusted source.


The problem is that BEC attacks bypass legacy email solutions. As the email comes from a trusted source, it is able to pass rule-based security controls, such as DMARC, DKIM and domain authentication, without detection.




Tessian + Microsoft

API Deployment for Microsoft 365


Tessian Defender API Deployment allows Microsoft Office 365 customers to quickly deploy Tessian’s advanced phishing protection in a matter of seconds and automatically start protecting within hours. No configurations, policies or mail rerouting needed. Tessian Defender via API Deployment makes it faster and easier to deploy, improves protection and reduces security management overhead.







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See How Tessian Prevents BEC Attacks.
Customers around the world trust Tessian to stop the advanced threats other solutions can’t. Request a demo now to learn how Tessian can protect your organization.

How Tessian Detects and Prevents BEC Attacks

  • Understands Normal End-User Email Behaviors

    Unlike legacy email products that use a rule-based approach, sender reputation, and deny/allow lists, Tessian’s behavioral intelligence modeling, powered by machine learning, creates relationship graphs and baselines for what normal behaviors looks like for each end-user.

  • Learns from Global Threat Network

    Tessian’s algorithms continuously analyze and learn from email communications across its Global Threat Network, which contains billions of email data points, to build profiles and models of companies and their employees’ normal email communication patterns.

  • Analyzes Email Data to Detect Anomalies

    Tessian analyzes email metadata in real-time to identify anomalies. It compares inbound emails with your organization’s historical email dataset and the Tessian Global Threat Network. Tessian also uses natural language processing (NLP) and conducts deep content inspection to look for content within emails that has malicious intent. This way, Tessian can detect the most subtle anomalies that signal a BEC attack.

  • Identifies Your Most Targeted Employees

    Tessian identifies the most attacked people in your organization, the spread of the attack, and previous instances of such an attack to help security teams take preventative action against advanced email threats.

  • Coaches People on Threats In-the-moment

    Tessian prevents end-users from falling victim to a BEC attack by warning the individual of the threat in real-time and explaining what is unusual about the email with contextual warnings. This in-the-moment security awareness coaching reduces click through rates and helps people detect future attacks.

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Learn More About the Dangers of BEC Attacks.
See how BEC attacks are bypassing secure email gateways and tricking end-users into complying with malicious requests.
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Stop BEC Attacks with Tessian.
Tessian’s intelligent approach to email security can help you and your organization stay outsmart threat actors. Learn how.