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Microsoft 365 Security

The latest Microsoft 365 Security coverage — news, analysis, and updates from the WindowsNews.AI desk.

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Advanced Malware · Cryptic Phishing

Advanced QR Code Phishing Targets Microsoft 365: How to Defend Against the Rising Threat

The relentless evolution of cyber threats continues to challenge even the most security-conscious organizations, and the emergence of sophisticated phishing campaigns exploiting new attack vectors...

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Account Security · Calendar Scams

Calendar Phishing Alert: How Hackers Exploit Microsoft 365 Invites

Cybercriminals are increasingly exploiting Microsoft 365 calendar invites as a stealthy phishing vector, bypassing traditional email security filters. These attacks leverage the trust users place in...

SE Security Desk·53w ago
Ai Abuse · Ai Risks

AI-Driven Phishing: How Hyper-Personalized Scams Bypass Your Defenses

Cybersecurity professionals worldwide have watched for years as the battle between defenders and attackers has grown increasingly sophisticated. But a new wave of threats is now on the horizon—one...

AI AI & Copilot Desk·54w ago
Calendar Scams · Calendar Security

Detect and stop Microsoft 365 calendar phishing attacks now

Cybercriminals are constantly evolving their tactics, and one of the latest threats targeting Microsoft 365 users is calendar phishing. These attacks exploit the trust users place in their digital...

SE Security Desk·54w ago
Attack Prevention · Cloud Monitoring

Securing Microsoft 365: Top Cybersecurity Strategies to Block Attacks

Microsoft 365 has become the backbone of modern enterprises, powering everything from email and document collaboration to compliance and cloud storage. Yet, its widespread adoption makes it a prime...

SE Security Desk·54w ago
Cyber Threats · Cyberattack Prevention

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...

SE Security Desk·54w ago
App Security · Business Email Compromise

Securing Microsoft 365 in 2025: Top Strategies to Defend Against Cyber Threats

Microsoft 365 has become the backbone of modern business operations, powering everything from email and document collaboration to video conferencing and project management. As we move into 2025, the...

SE Security Desk·54w ago
Advanced Threat Protection · Ai Security

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...

AI AI & Copilot Desk·54w ago
Cloud Email Defenses · Cloud Security

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...

SE Security Desk·55w ago