Direct Send Exploit
The latest Direct Send Exploit coverage — news, analysis, and updates from the WindowsNews.AI desk.
Internal Phishing Threats Exploiting Microsoft 365 Direct Send: Understanding and Defending Against SMTP Relay Abuse
A silent crisis is unfolding within Microsoft 365 environments as attackers turn the platform’s own trusted features against its users. The rise of sophisticated phishing campaigns leveraging...
New Microsoft 365 SMTP Relay Exploit Bypasses DKIM—8-Step Defense Guide
Microsoft 365 has become the backbone of enterprise communication, but its security isn't foolproof—especially when it comes to direct send email phishing attacks. These sophisticated threats...
Microsoft 365 Direct Send Abuse: How to Protect Against Phishing Attacks
Microsoft 365's Direct Send feature, designed to simplify internal email routing, has become an unexpected security vulnerability. Recent research reveals how threat actors exploit this legitimate...
Microsoft 365 Direct Send Phishing: How to Protect Your Business Now
Microsoft 365's Direct Send feature, designed to simplify email delivery for applications and devices, has become an unwitting accomplice in sophisticated phishing campaigns. Security researchers...
Microsoft 365 Direct Send Exploitation: How Hackers Bypass Email Security for Phishing
Microsoft 365's Direct Send feature, designed to simplify email routing for organizations, has become an unexpected weapon in sophisticated phishing campaigns. Security researchers have uncovered a...
Microsoft 365 Direct Send Phishing: How to Protect Your Organization Now
A sophisticated phishing campaign exploiting Microsoft 365's Direct Send feature has compromised over 70 organizations across multiple sectors in the U.S. since May 2025. This attack vector bypasses...
Microsoft 365 Direct Send Phishing: How to Protect Your Organization
Microsoft 365 tenants across the United States have recently become the focal point of a sophisticated, widespread phishing campaign that leverages a rarely-discussed but highly impactful...