Email Security
The latest Email Security coverage — news, analysis, and updates from the WindowsNews.AI desk.
Exchange Server Subscription Edition launches July 1 with core-based annual licensing
Microsoft has officially released the Exchange Server Subscription Edition (SE) on July 1, 2025, marking a significant shift in how enterprises license and manage their on-premises email...
Microsoft Defender's Mail Bombing Detection: A Game-Changer for Office 365 Security
Microsoft is taking a proactive stance against email-based attacks with the introduction of Mail Bombing Detection in Microsoft Defender for Office 365. This new feature targets a growing threat...
Exchange Server SE: Subscription Model Redefines On-Premises Enterprise Email
Microsoft's Exchange Server Subscription Edition (SE) represents a seismic shift in how enterprises manage their email infrastructure. By introducing a subscription-based model for on-premises...
PDF-Based Callback Phishing: How Cybercriminals Exploit AI & Brand Trust
Cybercriminals are evolving their tactics, leveraging PDF-based callback phishing to bypass traditional email security measures. These attacks exploit AI-driven automation and brand impersonation,...
Microsoft 365 DNS Blunder Blocks OTP Emails: Key MFA Lessons Learned
A recent Microsoft 365 DNS misconfiguration caused widespread disruption to OTP (One-Time Password) email delivery, highlighting critical vulnerabilities in cloud-based authentication workflows. For...
Healthcare Cloud Email: Top HIPAA Security Risks & Best Practices for 2024
The digital transformation of healthcare has brought patient records, diagnostics, and even critical care management firmly into the cloud era. The sector increasingly relies on robust, scalable...
Cloud Email Security Risks: Silent Failures in Microsoft 365 & Google Workspace
The assumption that emails sent via Microsoft 365 and Google Workspace are always secure is dangerously flawed. While these platforms dominate enterprise communication, their encryption mechanisms...
Microsoft Defender for Office 365 Now Fights Email Flooding with Mail Bombing Detection
Email bombing, a cyberattack technique that inundates a target's inbox with a deluge of emails, has long been a tool for malicious actors aiming to disrupt business operations. Microsoft Defender for...
Microsoft Defender's Mail Bombing Detection: How It Protects Your Organization
Email bombing, a form of cyberattack where attackers flood a target's inbox with a massive volume of emails, has become an increasingly prevalent threat. This tactic aims to overwhelm users, making...
Microsoft Defender for Office 365 Boosts Email Bomb Protection with AI-Powered Detection
Microsoft Defender for Office 365 has taken a major step forward in combating email bombing attacks with its newly enhanced detection and mitigation capabilities. This critical security update...
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...