Email Security
The latest Email Security coverage — news, analysis, and updates from the WindowsNews.AI desk.
CyberSentriq: The Next-Gen MSP Security Platform Revolutionizing SMB Cyber Defense
The cybersecurity landscape for small and medium-sized businesses (SMBs) is undergoing a seismic shift with the emergence of CyberSentriq, a new managed service provider (MSP)-focused security...
Microsoft Delays SMTP AUTH Basic Auth Deprecation to 2026: Key Impacts & Migration Steps
Microsoft has extended its deadline for deprecating Basic Authentication (Basic Auth) in Exchange Online's SMTP AUTH protocol to April 2026, giving organizations additional time to transition to...
Microsoft Outlook’s Offline Attachments: Revolutionizing Windows Email Workflows
Microsoft Outlook has long been the go-to email client for Windows users, blending powerful features with enterprise-grade reliability. Now, with its latest offline attachments capability, Outlook is...
Microsoft Outlook's Two-Click Encrypted Email: A Game-Changer for Security in 2025
Microsoft is set to revolutionize email security with a groundbreaking feature coming to Outlook in 2025: two-click encrypted email viewing. This innovation promises to streamline secure...
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 Defender XDR Enhances Security with New Campaign and Malicious File Detection
Microsoft Defender XDR has taken a significant leap forward in threat detection with the introduction of two powerful new data tables—CampaignInfo and FileMaliciousContentInfo. These additions to...
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...
Outlook to Block Two File Types from 2025 as Exploits Like Follina Rise
Microsoft is taking another decisive step in its ongoing battle against cyber threats by announcing that Outlook will block 'library-ms' and 'search-ms' file attachments starting in 2025. This move...
Outlook 2025 Now Blocks Executable Files, Scripts to Thwart Email Malware
Microsoft has taken a significant step forward in email security by expanding its list of blocked file attachments in Outlook 2025. This latest update targets potentially dangerous file types that...
Microsoft Outlook Zero-Click RCE: Patch CVE-2025-47176 Now
In early 2025, cybersecurity researchers uncovered a critical vulnerability in Microsoft Outlook, designated as CVE-2025-47176, which poses severe risks to millions of users worldwide. This remote...
CVE-2025-47171 Outlook RCE Vulnerability: Risks, Mitigation & Best Practices
Microsoft Outlook remains one of the most targeted email clients due to its widespread enterprise adoption, making newly discovered vulnerabilities like CVE-2025-47171 particularly concerning. This...