Proofpoint Enhances Microsoft Defender with New Email Threat Detection Integration
SUNNYVALE, Calif., October 26, 2026 – Proofpoint Inc., an established leader in human and agent cybersecurity, has made a pivotal announcement regarding its integration with Microsoft Defender for Office 365 Integrated Cloud Email Security (ICES) vendor ecosystem. This strategic development enables Microsoft 365 users to incorporate Proofpoint’s advanced Core Email Protection API into their existing Microsoft security frameworks, facilitating the visibility of Proofpoint detections directly within the Microsoft Defender portal.
This integration represents a significant enhancement in the collaboration between Proofpoint and Microsoft, reinforcing the interoperability of their services. By combining Proofpoint’s robust threat detection capabilities with Microsoft’s security infrastructure, organizations are afforded a more comprehensive and layered defense against the increasingly sophisticated landscape of email-based threats.
Tom Corn, the Executive Vice President and General Manager of Proofpoint’s Threat Protection Group, emphasized the importance of this partnership in his remarks: “Organizations rely on both Microsoft and Proofpoint to protect their most critical communications and data. By extending Proofpoint’s interoperability across ICES, we’re delivering a more unified security experience that strengthens defense-in-depth and simplifies operations for our shared customers. This milestone reflects our commitment to joint customers worldwide.”
A Comprehensive Security Framework for Microsoft Users
The integration into the ICES framework allows security teams within Microsoft environments to view Proofpoint’s API-driven detections alongside Microsoft’s own alerts within a single console. This capability significantly eases the burden on security operations center (SOC) teams, minimizing the time spent switching contexts between different platforms and streamlining investigation workflows. The convergence of these two systems not only improves efficiency but also enhances the immediate effectiveness of responses to potential threats.
Key advantages for customers leveraging this new integration are outlined as follows:
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Integrated Visibility: Security operations teams can monitor both Proofpoint’s and Microsoft’s detections in one unified interface, drastically accelerating investigation processes and enhancing response times to emergent threats.
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Layered Protection: Proofpoint’s Core Email Protection API, powered by advanced artificial intelligence from Proofpoint Nexus, boasts a remarkable 99.999% detection accuracy. This feature bolsters Microsoft’s inherent controls, delivering comprehensive defense-in-depth against various email-related attacks, including phishing, business email compromise, and ransomware.
- Operational Efficiency: The streamlined workflows facilitated by this integration reduce the operational burden on analysts, enabling swifter and more coordinated responses to incidents, thereby improving overall organizational resilience.
Oz Wilder, Partner Director for Email and Collaboration Security at Microsoft, reiterated the significance of this integration, stating, “Our focus is on building a cohesive defense fabric that drives real efficiency for security operations centers, anchored in Microsoft Defender. The ICES ecosystem allows customers to adapt and scale with the evolving threat landscape. By integrating with Microsoft Defender, Proofpoint contributes to a more consistent and simplified security operations experience for our mutual customer base.”
Accelerated Momentum in Partnership
Proofpoint currently safeguards the communications of over 1.8 million Microsoft customers worldwide. This extensive reach accentuates the importance of ICES as a natural evolution of their partnership, underscoring a shared commitment to delivering tightly integrated security solutions.
With a proven track record in protecting enterprise email on a large scale, Proofpoint enriches the Microsoft security ecosystem with its industry-leading, human-centric threat detection capabilities. This partnership not only enhances security measures but also fosters a deeper integration that allows organizations to operate with greater confidence in their digital communications.
For organizations seeking further information regarding this advanced integration, they can explore the services offered through Proofpoint by visiting their API Email Security page, or by reading more detailed insights in their blog focusing on this pivotal partnership announcement.
About Proofpoint, Inc.
Proofpoint, Inc. stands at the forefront of cybersecurity, emphasizing the security of connections across email, cloud, and collaboration tools. This influential firm partners with over 80 of the Fortune 100 companies, alongside more than 14,000 large enterprises and millions of smaller organizations, to combat threats, mitigate data loss, and enhance resilience across digital workflows. Their platform supports organizations of all sizes in protecting their workforce, securing their data, and embracing AI with confidence. For more insights into Proofpoint’s offerings, interested parties are encouraged to navigate to their official website.
In summary, the integration between Proofpoint and Microsoft marks a significant step forward in the realm of cybersecurity, providing organizations with a powerful weapon against the ever-evolving threat landscape.