Microsoft investigates Windows 11 boot failures after January updates January 25, 2026 Microsoft is investigating reports that some Windows 11 devices are failing to boot with “UNMOUNTABLE_BOOT_VOLUME” errors after installing the January 2026
1Password adds pop-up warnings for suspected phishing sites January 25, 2026 The 1Password digital vault and password manager has added built-in protection against phishing URLs to help users identify malicious pages
Sandworm hackers linked to failed wiper attack on Poland’s energy systems January 25, 2026 A cyberattack targeting Poland’s power grid in late December 2025 has been linked to the Russian state-sponsored hacking group Sandworm,
Microsoft releases emergency OOB update to fix Outlook freezes January 25, 2026 Microsoft has released emergency, out-of-band updates on Saturday for Windows 10, Windows 11, and Windows Server to fix an issue