KnowBe4 Inc.

10/14/2026 | Press release | Distributed by Public on 10/14/2026 06:03

KnowBe4 Defend Ranks First in Microsoft's Real-World Email Security Benchmark

Defend caught 3.7 times more email threats missed by Microsoft Defender than the average add-on

KnowBe4, the global leader in digital workforce security, securing both humans and AI agents, today announced that KnowBe4 Defend ranked first across all three incremental detection metrics reported by Microsoft in its latest email security benchmark, which measured seven integrated cloud email security (ICES) solutions on live Defender customer data.

KnowBe4 Defend caught 1.11% of malicious email Defender missed, versus a 0.30% average. Its 0.65% overlap with Defender was the lowest measured, and it accounted for 16.92% of post-delivery malicious removals, more than double the average.

"Today's attacks are built to look like normal business conversation," said Stuart Clark, senior vice president of product at KnowBe4. "Defend reads behavior and relationships, not just payloads, and Microsoft's own data shows how much that layer catches."

Read KnowBe4's full analysis of the benchmark, and hear Clark discuss the findings in an Oct. 28 webinar.

KnowBe4 Inc. published this content on October 14, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on October 14, 2026 at 12:03 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]