Microsoft January 2026 Patch Tuesday fixes 3 zero-days, 114 flaws

Today is Microsoft's January 2026 Patch Tuesday with security updates for 114 flaws, including one actively exploited and two publicly disclosed zero-day vulnerabilities. [...]

https://www.bleepingcomputer.com/news/microsoft/microsoft-january-2026-patch-tuesday-fixes-3-zero-days-114-flaws/

 Windows 11 KB5074109 & KB5073455 cumulative updates released

Microsoft has released Windows 11 KB5074109 and KB5073455  cumulative updates for versions 25H2/24H2 and 23H2 to fix security vulnerabilities, bugs, and add new features. [...]

https://www.bleepingcomputer.com/news/microsoft/windows-11-kb5074109-and-kb5073455-cumulative-updates-released/

 Microsoft releases Windows 10 KB5073724 extended security update

Microsoft has released the KB5073724 extended security update to fix the Patch Tuesday security updates, including 3 zero-days and a fix for expiring Secure Boot certificates. [...]

https://www.bleepingcomputer.com/news/microsoft/microsoft-releases-windows-10-kb5073724-extended-security-update/

 New Windows updates replace expiring Secure Boot certificates

Microsoft has started rolling out new Secure Boot certificates that will automatically install on eligible Windows 11 24H2 and 25H2 systems. [...]

https://www.bleepingcomputer.com/news/security/microsoft-rolls-out-new-secure-boot-certificates-for-windows-devices/

 Belgian hospital AZ Monica shuts down servers after cyberattack

Belgian hospital AZ Monica was forced to shut down all servers, cancel scheduled procedures, and transfer critical patients earlier today due to a cyberattack. [...]

https://www.bleepingcomputer.com/news/security/belgian-hospital-az-monica-shuts-down-servers-after-cyberattack/

 Central Maine Healthcare breach exposed data of over 145,000 people

A data breach last year at Central Maine Healthcare (CMH) exposed sensitive information of more than 145,000 individuals. [...]

https://www.bleepingcomputer.com/news/security/central-maine-healthcare-breach-exposed-data-of-over-145-000-people/

 New VoidLink malware framework targets Linux cloud servers

A newly discovered advanced cloud-native Linux malware framework named VoidLink focuses on cloud environments, providing attackers with custom loaders, implants, rootkits, and plugins designed for modern infrastructures. [...]

https://www.bleepingcomputer.com/news/security/new-voidlink-malware-framework-targets-linux-cloud-servers/

 Ukraine's army targeted in new charity-themed malware campaign

Officials of Ukraine's Defense Forces were targeted in a charity-themed campaign between October and December 2025 that delivered backdoor malware called PluggyApe. [...]

https://www.bleepingcomputer.com/news/security/ukraines-army-targeted-in-new-charity-themed-malware-campaign/

 Monroe University says 2024 data breach affects 320,000 people

Monroe University revealed that threat actors stole the personal, financial, and health information of over 320,000 people after breaching its systems in a December 2024 cyberattack. [...]

https://www.bleepingcomputer.com/news/security/monroe-university-says-2024-data-breach-affects-320-000-people/

 Microsoft: Windows 365 update blocks access to Cloud PC sessions

Microsoft confirmed that a recent Windows 365 update is blocking customers from accessing their Microsoft 365 Cloud PC sessions. [...]

https://www.bleepingcomputer.com/news/microsoft/microsoft-windows-365-update-blocks-access-to-cloud-pc-sessions/

 Victorian Department of Education says hackers stole students’ data

The Department of Education in Victoria, Australia, notified parents that attackers gained access to a database containing the personal information of current and former students. [...]

https://www.bleepingcomputer.com/news/security/victorian-department-of-education-notifies-parents-of-data-breach/

 Cloud marketplace Pax8 accidentally exposes data on 1,800 MSP partners

Cloud marketplace and distributor Pax8 has confirmed that it mistakenly sent an email to fewer than 40 UK-based partners containing a spreadsheet with internal business information, including MSP customer and Microsoft licensing data. [...]

https://www.bleepingcomputer.com/news/security/cloud-marketplace-pax8-accidentally-exposes-data-on-1-800-msp-partners/

 Reprompt attack let hackers hijack Microsoft Copilot sessions

Researchers identified an attack method dubbed "Reprompt" that could allow attackers to infiltrate a user's Microsoft Copilot session and issue commands to exfiltrate sensitive data. [...]

https://www.bleepingcomputer.com/news/security/reprompt-attack-let-hackers-hijack-microsoft-copilot-sessions/

 ConsentFix debrief: Insights from the new OAuth phishing attack

ConsentFix is an OAuth phishing technique abusing browser-based authorization flows to hijack Microsoft accounts. Push Security shares new insights from continued tracking, community research, and evolving attacker techniques. [...]

https://www.bleepingcomputer.com/news/security/consentfix-debrief-insights-from-the-new-oauth-phishing-attack/

 Microsoft updates Windows DLL that triggered security alerts

Microsoft has resolved a known issue that was causing security applications to incorrectly flag a core Windows component, the company said in a service alert posted this week. [...]

https://www.bleepingcomputer.com/news/microsoft/microsoft-updates-windows-dll-that-triggered-security-alerts/

 Verizon Wireless outage puts phones in SOS mode without cell service

Verizon Wireless is suffering a massive outage in the US, with customers reporting their phones stuck in SOS mode with no cellular service. [...]

https://www.bleepingcomputer.com/news/mobile/verizon-wireless-outage-puts-phones-in-sos-mode-without-cell-service/

 Exploit code public for critical FortiSIEM command injection flaw

Technical details and a public exploit have been published for a critical vulnerability affecting Fortinet's Security Information and Event Management (SIEM) solution that could be leveraged by a remote, unauthenticated attacker to execute commands or code. [...]

https://www.bleepingcomputer.com/news/security/exploit-code-public-for-critical-fortisiem-command-injection-flaw/

 France fines Free Mobile €42 million over 2024 data breach incident

The French data protection authority (CNIL) has imposed cumulative fines of €42 million on Free Mobile and its parent company, Free, for inadequate protection of customer data against cyber threats. [...]

https://www.bleepingcomputer.com/news/security/france-fines-free-mobile-42-million-over-2024-data-breach-incident/

 South Korean giant Kyowon confirms data theft in ransomware attack

The Kyowon Group (Kyowon), a South Korean conglomerate, disclosed that a cyberattack has disrupted its operations and customer information may have been exposed in the incident. [...]

https://www.bleepingcomputer.com/news/security/south-korean-giant-kyowon-confirms-data-theft-in-ransomware-attack/

 OpenAI's hidden ChatGPT Translate tool takes on Google Translate

OpenAI has quietly rolled out a new ChatGPT feature called ChatGPT Translate, and it looks very similar to Google Translate on the web. [...]

https://www.bleepingcomputer.com/news/artificial-intelligence/openais-hidden-chatgpt-translate-tool-takes-on-google-translate/

 Google's Personal Intelligence links Gmail, Photos and Search to Gemini

Google is rolling out 'Personal Intelligence,' a new Gemini feature that pulls your data from Gmail, Photos, Google Search, and other products. [...]

https://www.bleepingcomputer.com/news/artificial-intelligence/googles-personal-intelligence-links-gmail-photos-and-search-to-gemini/