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Abnormal Security

AI-based email security that stops phishing, business email compromise and account takeovers.

About Abnormal Security

Abnormal Security protects inboxes by learning how people normally communicate in a company. When a message deviates, such as a fake invoice from a familiar sender, it blocks the message even if it has no known malicious links. It also detects compromised accounts, flags risky behavior and automates the handling of phishing reports from employees. It connects through APIs to Microsoft 365 and Google Workspace, so no mail routing changes are needed. Abnormal is sold by subscription to organizations. It is popular with companies concerned about targeted email attacks.

Standout features

  • Behavioral email protection
  • Business email compromise defense
  • Account takeover detection
  • Phishing report automation
  • API-based deployment
  • Microsoft 365 and Google support

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