• Proofpoint is joining Microsoft's Defender for Office 365 Integrated Cloud Email Security ecosystem, expanding its security partnership.
• The integration lets Microsoft 365 customers add Core Email Protection API detection capabilities within their existing Microsoft security environment.
• Security teams can view detections directly in the Microsoft Defender portal, streamlining investigations and threat response.
• The partnership builds on protection already provided to more than 1.8 million Microsoft customers worldwide.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Proofpoint Inc. published the original content used to generate this news brief on October 26, 2026, and is solely responsible for the information contained therein.