Between December 2025 and February 2026, StrongestLayer's threat research team analyzed approximately 5,000 email-based threats that successfully bypassed deployed Secure Email Gateways - mapping over 1,400 unique evasion technique combinations, a 130% increase from the prior research period. The findings reveal a fundamental shift in attack architecture: more than 1 in 4 emails now use TOAD (Telephone-Oriented Attack Delivery), moving the payload to a phone call where no email security system can follow. An additional 35.9% of attacks fall into structural blind spots - categories where SEG detection is not merely difficult but architecturally impossible. This report examines not whether phishing is getting harder to detect - every security team knows it is - but why the gap is widening despite continued investment in email security tooling. The answer lies not in attacker sophistication alone. It lies in architecture.