Microsoft 365 Security
The latest Microsoft 365 Security coverage — news, analysis, and updates from the WindowsNews.AI desk.
How to Defend Against Advanced AitM Phishing Attacks Targeting Microsoft 365 and Google Accounts
Organizations worldwide are facing an unprecedented surge in sophisticated phishing attacks, with adversaries increasingly targeting Microsoft 365 and Google accounts using advanced...
EchoLeak: Critical Microsoft Copilot Vulnerability Exposes Enterprise Data
A newly discovered security flaw in Microsoft Copilot, dubbed 'EchoLeak,' has sent shockwaves through the enterprise security community. Researchers at cybersecurity firm Varonis uncovered that this...
Microsoft Outlook to Block .library-ms & .search-ms Files in 2025 Security Update
Microsoft is tightening Outlook's security measures by blocking two potentially dangerous file types—.library-ms and .search-ms—starting July 2025. This move aims to counter sophisticated...
Top 10 DMARC Implementation Hurdles in Microsoft 365 and How to Solve Them
Implementing Domain-based Message Authentication, Reporting, and Conformance (DMARC) in Microsoft 365 is a critical step toward enhancing email security by preventing domain spoofing and phishing...
Druva Cloud-Native Backup Secures Microsoft 365 from Ransomware & Compliance Risks
As businesses increasingly rely on Microsoft 365 (M365) for critical operations, the need for robust backup and security solutions has never been greater. Druva Data Resiliency Cloud emerges as a...
Google Apps Script Phishing Attacks Targeting Microsoft 365: How to Stay Protected
Cybercriminals are increasingly exploiting Google Apps Script to launch sophisticated phishing campaigns against Microsoft 365 users, bypassing traditional security measures with alarming success....
Google Apps Script Exploited in Advanced Phishing Attacks Targeting Microsoft 365 Users
Cybercriminals are increasingly leveraging Google Apps Script to launch sophisticated phishing campaigns targeting Microsoft 365 users. This alarming trend combines the trust associated with Google's...
Tycoon2FA and Dadsec drive advanced phishing that bypasses MFA protections
The cybersecurity landscape is witnessing a dangerous evolution in phishing tactics with the emergence of sophisticated Phishing-as-a-Service (PhaaS) platforms like Tycoon2FA and Dadsec. These...
Google Apps Script Hijacked to Steal Microsoft 365 Credentials in New Phishing Wave
Cybercriminals are increasingly exploiting Google Apps Script to launch sophisticated phishing attacks targeting Microsoft 365 users. This alarming trend demonstrates how attackers abuse legitimate...
Microsoft 365 in 2023: Top Cybersecurity Threats & Proven Mitigation Strategies
Microsoft 365 has become the backbone of modern enterprise productivity, but its widespread adoption also makes it a prime target for cybercriminals. In 2023, organizations face an evolving landscape...
Microsoft 365 faces top 2025 threats: AI phishing, ransomware & insider risks
As organizations increasingly rely on Microsoft 365 for productivity and collaboration, cyber threats targeting the platform continue to evolve at an alarming rate. In 2025, businesses face a perfect...
Microsoft 365 in 2025: AI Phishing, Ransomware & Zero Trust Fixes
As organizations increasingly rely on Microsoft 365 for productivity and collaboration, the platform has become a prime target for cybercriminals. By 2025, security threats are expected to evolve in...