Microsoft Challenges Multi-Vendor Email Security Strategy

What Changed

Microsoft claims Defender catches the vast majority of threats, with integrated partners adding less than 0.05% to catch rates.

Why It Matters

This report signals a strategic push by Microsoft to consolidate the security stack, potentially pressuring third-party email security vendors to prove their unique value proposition in an AI-integrated ecosystem.

What To Do Next

Evaluate your current email security stack by comparing your vendor's catch rate against Microsoft's reported benchmarks to determine if your multi-vendor strategy provides sufficient ROI.