Email Spoofing
The latest Email Spoofing coverage — news, analysis, and updates from the WindowsNews.AI desk.
CVE-2026-47631 Exchange Spoofing: Act Now Despite Sparse Patch Details
Microsoft dropped CVE-2026-47631 into its Security Update Guide this week, flagging a spoofing vulnerability in Microsoft Exchange Server. The advisory offers almost nothing beyond a high-confidence...
Microsoft Drops Limited Details on CVE-2025-25006 Exchange Spoofing Bug—Here’s How to Protect Your Network
Microsoft has posted a new Exchange Server vulnerability, CVE-2025-25006, with a terse description that points to a spoofing weakness in how the mail server handles special header elements. The...
The Phishing Pipeline: How Attackers Weaponize Microsoft 365 Direct Send to Evade Every Defense
Microsoft 365’s Direct Send feature has become a double-edged sword. Designed to let printers, scanners, and applications relay mail without a dedicated mailbox, it now enables attackers to slip...
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...
Exploiting Microsoft 365 Direct Send: A Rising Internal Phishing Threat and How to Mitigate It
The rapidly evolving landscape of cyber threats has once again placed Microsoft 365 at the forefront of organizational security concerns. Previously hailed as a linchpin of digital collaboration and...
Mitigating Phishing Attacks Exploiting Microsoft 365 Direct Send and SMTP Relay Vulnerabilities
Phishing attacks leveraging Microsoft 365’s Direct Send feature and unsecured SMTP relays are rapidly evolving, presenting significant risks for organizations across sectors. As cybercriminals...
How Cybercriminals Exploit Link Wrapping to Launch Sophisticated Microsoft 365 Phishing Attacks
Just as organizations have started to place their trust in security technologies designed to make email safer, a transformative threat has emerged that subverts these very foundations. Cybercriminals...
Microsoft 365 Direct Send Exploitation: Analyzing the Rise of Internal Phishing Attacks
Phishing, once typified by crude email scams and glaring grammatical missteps, has evolved with ruthless efficiency in today’s cloud-first workplaces. Nowhere is this threat more acute than in...
Protecting Against Microsoft 365 Direct Send Exploitation: Defending Internal Phishing Attacks
Microsoft 365 has become the backbone of modern business productivity, offering powerful communication tools and centralized collaboration for organizations of all sizes. But as its influence has...
How to Defend Against Microsoft 365 Direct Send Phishing Attacks in 2025
In May 2025, cybersecurity researchers at Varonis Threat Labs uncovered a sophisticated phishing campaign exploiting Microsoft 365's Direct Send feature, putting organizations worldwide at risk. This...
Microsoft Defender AI slashes email bombing detection from hours to minutes, cutting false positives in early enterprise tests.
Email security has never been more critical as cybercriminals deploy increasingly sophisticated tactics to bypass traditional defenses. Microsoft Defender's new email bombing detection capability...
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...