Microsoft Defender for Office 365 — One Year of Real-World Email Security Benchmarking Published

Microsoft published a detailed benchmarking report (June 15, 2026) drawing on one full year of head-to-head data comparing Defender for Office 365 against SEG and ICES vendors across phishing, BEC, and malware catch rates, with AI-driven detection as the differentiator.

Gives security buyers independent, longitudinal data to evaluate AI-powered email security ROI; positions Defender's ML-based detection as quantifiably superior to legacy SEG architectures across real customer environments.

Email security buyers and CISOs evaluating SEG/ICES consolidation onto Microsoft's native stack; immediately actionable for procurement decisions.