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Microsoft Defender AI slashes email bombing detection from hours to minutes, cutting false positives in early enterprise tests.·MSFT +2.1%Microsoft 365 Direct Send Exploited for Advanced Phishing Attacks in 2025·NVDA +0.2%New Microsoft 365 SMTP Relay Exploit Bypasses DKIM—8-Step Defense Guide·GOOGL +1.7%Microsoft 365 Security Strategies Every Small Business Must Implement in 2025·AMZN +1.1%Microsoft 365 Direct Send Phishing: How to Protect Your Business Now·MSFT +2.1%Microsoft 365's Direct Send Feature Exploited in Phishing Attacks: What You Need to Know·NVDA +0.2%Microsoft 365 Direct Send Security Risks: Enterprise Protection Strategies·GOOGL +1.7%Rise of Internally Spoofed Phishing: Abusing Microsoft 365's Direct Send Feature·AMZN +1.1%Microsoft Defender AI slashes email bombing detection from hours to minutes, cutting false positives in early enterprise tests.·MSFT +2.1%Microsoft 365 Direct Send Exploited for Advanced Phishing Attacks in 2025·NVDA +0.2%New Microsoft 365 SMTP Relay Exploit Bypasses DKIM—8-Step Defense Guide·GOOGL +1.7%Microsoft 365 Security Strategies Every Small Business Must Implement in 2025·AMZN +1.1%Microsoft 365 Direct Send Phishing: How to Protect Your Business Now·MSFT +2.1%Microsoft 365's Direct Send Feature Exploited in Phishing Attacks: What You Need to Know·NVDA +0.2%Microsoft 365 Direct Send Security Risks: Enterprise Protection Strategies·GOOGL +1.7%Rise of Internally Spoofed Phishing: Abusing Microsoft 365's Direct Send Feature·AMZN +1.1%

Security Best Practices

The latest Security Best Practices coverage — news, analysis, and updates from the WindowsNews.AI desk.

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Cloud Security · Cyber Threats

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...

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Advanced Threat Protection · Cybersecurity

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...

SE Security Desk·55w ago
Business Email Compromise · Cloud Security

Microsoft 365's Direct Send Feature Exploited in Phishing Attacks: What You Need to Know

Microsoft 365's Direct Send feature, designed to simplify internal email routing, has become an unexpected weapon in cybercriminals' phishing arsenals. Security researchers have uncovered...

SE Security Desk·55w ago
Cyber Threats · Cybersecurity

Microsoft 365 Direct Send Security Risks: Enterprise Protection Strategies

Microsoft 365's Direct Send feature has become an unexpected weak point in enterprise email security, with attackers increasingly exploiting this SMTP relay capability to bypass traditional defenses....

SE Security Desk·55w ago
Cloud Security · Cybersecurity

Rise of Internally Spoofed Phishing: Abusing Microsoft 365's Direct Send Feature

Rise of Internally Spoofed Phishing: Abusing Microsoft 365's Direct Send Feature A sophisticated phishing campaign is exploiting a legitimate Microsoft 365 feature to bypass security protocols and...

SE Security Desk·55w ago
Ai Compliance · Ai Governance

Zero-trust and explainable AI key to safe adoption as cybersecurity AI adoption accelerates

Artificial intelligence (AI) is transforming cybersecurity, offering unprecedented capabilities to detect and mitigate threats while simultaneously introducing new vulnerabilities. As organizations...

AI AI & Copilot Desk·55w ago
Business Security · Cyber Threats

Microsoft 365 Direct Send Exploit: How to Protect Your Business from Phishing Attacks

A sophisticated phishing campaign exploiting Microsoft 365's "Direct Send" feature has targeted over 70 organizations, primarily in the United States, highlighting critical vulnerabilities in...

SE Security Desk·55w ago
Cyber Defense · Cybersecurity

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...

SE Security Desk·55w ago
Cloud Security · Cyber Threats

Microsoft 365 Direct Send Exploit: How Phishers Bypass Email Security

A sophisticated phishing campaign exploiting Microsoft 365's Direct Send feature has security teams scrambling to update detection rules. This lesser-known SMTP protocol, designed for internal...

SE Security Desk·56w ago