Tessian

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Advanced AI for email security to defend against phishing and prevent data loss.

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TL;DR - Tessian

Defends against advanced phishing threats using AI.
Prevents accidental and intentional data loss via email.
Reduces email risk and streamlines security operations.

Pricing: Paid only

Best for: Enterprises & pros

Pros & Cons

Pros

Leverages advanced AI for superior threat detection
Specifically targets human error, a major cause of cyberattacks
Comprehensive protection against both phishing and data loss
Reduces operational costs for security teams
Integrated with an industry-leading security platform (Proofpoint)

Cons

No explicit free tier or trial mentioned
Requires integration with existing email infrastructure
Specific pricing details are not publicly available

Preview

Key Features

AI-powered threat detectionAdaptive Email DLP (Data Loss Prevention)Behavioral and dynamic detectionProtection against misdirected emailStreamlined security analyst workflowsIntegrated with Proofpoint Core Email Protection

Pricing Plans

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What is Tessian?

Editorial review

Tessian, now integrated with Proofpoint, provides an advanced AI-powered email security solution designed to combat sophisticated phishing threats and prevent sensitive data loss. It addresses the human layer of risk, which is responsible for over 90% of successful cyberattacks, including 65% of data loss incidents due to misdirected emails. The platform leverages behavioral and dynamic detection to offer comprehensive defenses. This solution is ideal for organizations seeking to enhance their email security posture beyond traditional methods. It helps security teams stop more threats, reduce the likelihood of accidental or intentional data exfiltration via email, and streamline their security analyst workflows. By combining Proofpoint's industry-leading threat and data loss protection technology with Tessian's AI, it offers a robust defense against evolving cyber threats.

LCLouis CorneloupUpdated May 18, 2026 · how we evaluateSourcetessian.com ↗

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Tessian FAQ

What specific types of email threats does this solution protect against?

The solution protects against advanced phishing threats and prevents data loss incidents, including those caused by misdirected emails, by addressing the 'human layer of risk'.

How does the AI-powered detection work to stop threats?

It utilizes AI-powered behavioral and dynamic detection to identify and stop threats that traditional security measures might miss, providing an additional integrated layer of defense.

What is the benefit of Tessian joining forces with Proofpoint?

The collaboration brings together Tessian’s advanced AI for email security with Proofpoint’s industry-leading threat and data loss protection technology, offering a more comprehensive and robust defense against email-borne risks.

Can this solution help reduce the workload for security analysts?

Yes, by stopping more threats and reducing the risk of data loss, the solution is designed to streamline security analyst workflows and potentially reduce remediation costs.

Does this solution only protect against external threats, or does it also address internal risks?

The solution addresses both external threats like phishing and internal risks such as accidental and intentional data loss caused by human error, including misdirected emails.

Source: tessian.com