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Threat IntelligenceApr 23, 2026

The Behavioral Shift: Why Trusted Relationships Are the Newest Attack Surface

Abnormal AI report shows attackers shift from technical exploits to behavioral targeting via phishing, BEC, and vendor

Analysis of 800,000 email attacks across 4,600+ organizations reveals attackers are abandoning technical exploits in favor of sophisticated behavioral and social engineering tactics. The study identifies phishing (58%), business email compromise (11%), and vendor email compromise as primary attack vectors, with attackers using redirect chains, link shorteners, and carefully crafted pretexts that blend into legitimate organizational workflows. The trend highlights how trusted relationships and routine processes have become the newest attack surface, with defensive AI recommended as a key countermeasure.

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Indicators of Compromise

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  • domain — tinyurl.com
  • domain — t.co

Entities

Abnormal AI (vendor)Business Email Compromise (BEC) (technology)Vendor Email Compromise (VEC) (technology)Phishing (technology)