Ubiquiti has patched two vulnerabilities in the UniFi Network Application, including a maximum-severity flaw that may allow attackers to take over user accounts. [...]

CISA warned U.S. organizations to follow Microsoft guidance to strengthen the Intune endpoint management tool after a cyberattack exploited it to wipe medical technology giant Stryker's systems. [...]

A critical Microsoft SharePoint vulnerability patched in January is now being exploited in attacks, the Cybersecurity and Infrastructure Security Agency (CISA) warned. [...]

CISA has ordered U.S. government agencies to secure their servers against an actively exploited vulnerability in the Zimbra Collaboration Suite (ZCS). [...]

The Interlock ransomware gang has been exploiting a maximum severity remote code execution (RCE) vulnerability in Cisco's Secure Firewall Management Center (FMC) software in zero-day attacks since late January. [...]

Marquis, a Texas-based financial services provider, revealed this week that a ransomware gang stole the data of over 670,000 individuals in an August 2025 cyberattack that also disrupted operations at 74 banks across the United States. [...]

Microsoft has stopped automatically installing the Microsoft 365 Copilot app on Windows devices that have the Microsoft 365 desktop client apps. [...]

Microsoft has shared guidance to fix C:\ drive access issues and app failures on some Samsung laptops running Windows 11, versions 25H2 and 24H2. [...]

Microsoft has released an emergency update to fix a Bluetooth device visibility issue on hotpatch-enabled Windows 11 Enterprise devices. [...]

Microsoft is working to address a known issue that renders the classic Outlook email client unusable for users who have enabled the Microsoft Teams Meeting Add-in. [...]

CISA warned U.S. government agencies to secure their Wing FTP Server instances against an actively exploited vulnerability that may be chained in remote code execution attacks. [...]

Companies House, a British government agency that operates the registry for all U.K. companies, says its WebFiling service is back online after it was closed on Friday to fix a security flaw that exposed companies' information since October 2025. [...]

Microsoft is working to address an ongoing Exchange Online outage that is preventing customers from accessing their mailboxes and calendars. [...]

​Microsoft has removed the Samsung Galaxy Connect app from the Microsoft Store because it was causing issues on specific Samsung Galaxy Book 4 and desktop models running Windows 11. [...]

​Microsoft is investigating several issues causing email synchronization and connection problems when using the classic Outlook desktop client. [...]

An international law enforcement action codenamed "Operation Synergia III" has sinkholed tens of thousands of IP addresses and seized servers linked to cybercrime operations worldwide. [...]

Starbucks has disclosed a data breach affecting hundreds of employees after threat actors gained access to their Starbucks Partner Central accounts. [...]

Google has released emergency security updates to patch two high-severity Chrome vulnerabilities exploited in zero-day attacks. [...]

Data protection company Veeam Software has patched multiple flaws in its Backup & Replication solution, including four critical remote code execution (RCE) vulnerabilities. [...]