exchange online protection

Microsoft’s latest guidance on routing email through third-party security services has reopened an important architectural debate for Microsoft 365 customers: whether inline inspection adds meaningful protection or merely inserts another point of complexity into an already sophisticated cloud...

Microsoft Composite Authentication is the Exchange Online Protection verdict that Microsoft 365 stamps into inbound message headers as compauth=pass, fail, softpass, or none, combining SPF, DKIM, DMARC, ARC, spoof intelligence, sender reputation, and behavioral signals before Outlook decides how...

In May 2025, cybersecurity researchers at Varonis Threat Labs uncovered a sophisticated phishing campaign exploiting Microsoft 365's Direct Send feature. This attack has targeted over 70 organizations, with 95% based in the United States, across sectors such as financial services, manufacturing...

In an era where digital communication forms the backbone of professional and personal life, email security has surged in prominence. Cyberattacks leveraging email as a gateway—whether through phishing, malware, or advanced social engineering—have repeatedly made headlines, affecting...