Automatically prevent spear phishing, business email compromise, and other targeted email attacks.
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As of March 2026, the mindshare of Tessian Defender in the Email Security category
stands at 0.3%, up from 0.1% compared to the previous year, according to calculations based on PeerSpot user engagement data.
Email Security Mindshare Distribution
Product
Mindshare (%)
Tessian Defender
0.3%
Microsoft Defender for Office 365
8.8%
Proofpoint Email Protection
8.1%
Other
82.8%
Email Security
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