Microsoft: April 2025 updates break Windows Hello on some PCs
Microsoft says some Windows users might be unable to log into their accounts via Windows Hello after installing the April 2025 security updates. This known issue impacts both client (Windows 11 24H2) and server (Windows Server 2025) platforms with the KB5055523 cumulative update installed, although only in some specific scenarios. According to Redmond, devices impacted by these Windows Hello authentication issues include those with […]
Phishing kits now vet victims in real-time before stealing credentials
Phishing actors are employing a new evasion tactic called ‘Precision-Validated Phishing’ that only shows fake login forms when a user enters an email address that the threat actors specifically targeted. Unlike traditional mass-targeting phishing, this new method uses real-time email validation to ensure phishing content is shown only to pre-verified, high-value targets. Although not overly […]
Police detains Smokeloader malware customers, seizes servers
In follow-up activity for Operation Endgame, law enforcement tracked down Smokeloader botnet’s customers and detained at least five individuals. During Operation Endgame last year, more than 100 servers used by major malware loader operations (e.g. IcedID, Pikabot, Trickbot, Bumblebee, Smokeloader, SystemBC) were seized. In a press release today, Europol informs that the operation continues as law enforcement […]
Fake Microsoft Office add-in tools push malware via SourceForge
Threat actors are abusing SourceForge to distribute fake Microsoft add-ins that install malware on victims’ computers to both mine and steal cryptocurrency. SourceForge.net is a legitimate software hosting and distribution platform that also supports version control, bug tracking, and dedicated forums/wikis, making it very popular among open-source project communities. Although its open project submission model […]
Microsoft fixes auth issues on Windows Server, Windows 11 24H2
Microsoft has fixed a known issue causing authentication problems when Credential Guard is enabled on systems using the Kerberos PKINIT pre-auth security protocol. According to Redmond, these authentication issues impact both client (Windows 11, version 24H2) and server (Windows Server 2025) platforms, albeit only in some niche scenarios. On affected systems, users experience problems because […]
Microsoft April 2025 Patch Tuesday fixes exploited zero-day, 134 flaws
Today is Microsoft’s April 2025 Patch Tuesday, which includes security updates for 134 flaws, including one actively exploited zero-day vulnerability. This Patch Tuesday also fixes eleven “Critical” vulnerabilities, all remote code execution vulnerabilities. The number of bugs in each vulnerability category is listed below: The above numbers do not include Mariner flaws and 13 Microsoft […]
Microsoft: Windows CLFS zero-day exploited by ransomware gang
Microsoft says the RansomEXX ransomware gang has been exploiting a high-severity zero-day flaw in the Windows Common Log File System to gain SYSTEM privileges on victims’ systems. The vulnerability, tracked as CVE-2025-29824, was patched during this month’s Patch Tuesday and was only exploited in a limited number of attacks. CVE-2025-29824 is due to a use-after-free weakness that lets […]
Windows 10 KB5055518 update fixes random text when printing
Microsoft has released the KB5055518 cumulative update for Windows 10 22H2 and Windows 10 21H2, with nine changes or fixes. The Windows 10 KB5055518 update is mandatory as it contains Microsoft’s April 2025 Patch Tuesday security updates, which fix six actively exploited zero-day vulnerabilities. Windows users can install this update by going into Settings, clicking on Windows Update, and manually performing […]
Windows 11 KB5055523 & KB5055528 cumulative updates released
Microsoft has released Windows 11 KB5055523 and KB5055528 cumulative updates for versions 24H2 and 23H2 to fix security vulnerabilities and issues. Today’s updates are mandatory as they contain the April 2025 Patch Tuesday security patches for vulnerabilities discovered in previous months. Windows 11 users can install today’s update by going to Start > Settings > Windows Update and clicking on ‘Check for Updates.’ You can also manually download and install the […]
Hackers lurked in Treasury OCC’s systems since June 2023 breach
Unknown hackers who breached the Treasury’s Office of the Comptroller of the Currency (OCC) in June 2023 gained access to over 150,000 emails, according to anonymous sources familiar with the matter. The OCC is an independent bureau of the U.S. Department of the Treasury that oversees banks and federal savings associations and ensures they comply […]