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The Detection Gap: Why AI-Powered Attacks Are Winning Against Legacy Email Security

Watch this on-demand webinar to learn how AI-powered BEC attacks bypass secure email gateways, and how behavioral AI can detect what legacy tools miss.

Key Insights

Organizations reported over $3 billion in BEC losses to the FBI in 2025 alone.

AI-powered attacks impersonate executives and vendors and hijack real conversations instead of using malware or suspicious links.

Legacy SEGs scan for flagged domains and malicious payloads but cannot assess identity, behavior, or communication context.

Without a behavioral baseline for normal communication, SEGs cannot distinguish legitimate emails from convincing impersonations.

Behavioral AI can establish communication baselines to detect threats that rule-based legacy tools are blind to.

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In 2025 alone, organizations reported over $3 billion in losses due to business email compromise (BEC) to the FBI. Instead of obvious malware or suspicious links, today’s AII-powered attacks exploit human behavior—impersonating executives and vendors, hijacking real conversations, and blending seamlessly into everyday business communications.

Traditional secure email gateways weren't built to defend against these attacks. They scan for known flagged domains, unusual attachments, malicious payloads, without understanding identity, behavior, or communication context. Without a baseline for what "normal" looks like, they can't distinguish a legitimate email from a convincing impersonation.

This session breaks down why legacy detection is failing and how behavioral AI can close the gap. You'll walk away with:

  • Why your current detection rules are blind to these attacks
  • Why SEGs on their own can’t solve the problem
  • How behavioral baselines enable the protection legacy tools can't deliver

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See Abnormal in Action

See how behavioral AI detects the attacks that legacy defenses miss.