MSFT · News · 20260917N

Security Product Expansion

MICROSOFT CORP · 2026-09-17 · Importance 17 · Surprise 24

Microsoft’s latest Defender email-security benchmarking report said Defender missed significantly fewer high-severity threats than other secure email gateway vendors. The report describes ongoing product improvements in prevention, detection, and adaptation based on continuous measurement. Product enhancements include greater control over promotional mail, a redesigned AI model stack for detection accuracy, and prompt-injection protection for AI systems. These capabilities strengthen Microsoft’s positioning in enterprise email security and AI-related threat protection.

Key facts

• The Microsoft Security Blog report cites key innovations including more control over promotional mail, a redesigned AI model stack for improved detection accuracy, and prompt injection protection for AI systems. source
• Microsoft published an email security benchmarking report showing Microsoft Defender missed significantly fewer high-severity email threats compared to other secure email gateway vendors. source