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When Trusted Senders Become Threats: Stopping BEC and Supply Chain Attacks with Self-Learning AI

When Trusted Senders Become Threats: Stopping BEC and Supply Chain Attacks with Self-Learning AI (PDF, 2.11MB)Published: 24 Apr, 2026
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Matt Bromiley
Matt Bromiley

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Cloud email security is easier said than done. Native email security controls were built for scale, not sophistication, and attackers know it. Time and time again, SANS sees the adversary’s ability to thwart even the best laid plans and defenses. The challenge isn’t a lack of tools; it’s a fundamental gap in how some tools approach detection.

When Trusted Senders Become Threats: Stopping BEC and Supply Chain Attacks with Self‑Learning AI

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Your biggest email threats aren’t strangers, they’re trusted partners whose accounts have been compromised. Discover how self‑learning AI uncovers subtle behavioral shifts that signal BEC and supply chain attacks before damage is done.

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Meet the Expert

Matt Bromiley
Matt Bromiley

Matt Bromiley

Certified Instructor

Matt Bromiley is a Lead Solutions Engineer at LimaCharlie and SANS Certified Instructor. He serves as a GIAC Advisory Board member, a SME for the SANS Security Awareness, and a technical writer for the SANS Analyst Program.

Read more about Matt Bromiley