Ransomware attackers targeting a Fortune 100 company in the finance sector used a new malware strain, dubbed PDFSider, to deliver malicious payloads on Windows systems. [...]

The U.K. government is warning of continued malicious activity from Russian-aligned hacktivist groups targeting critical infrastructure and local government organizations in the country in disruptive denial-of-service (DDoS) attacks. [...]

A Tennessee man has pleaded guilty to hacking the U.S. Supreme Court's electronic filing system and breaching accounts at the AmeriCorps U.S. federal agency and the Department of Veterans Affairs. [...]

A Jordanian man has pleaded guilty to operating as an "access broker" who sold access to the computer networks of at least 50 companies. [...]

​Information technology giant Ingram Micro has revealed that a ransomware attack on its systems in July 2025 led to a data breach affecting over 42,000 individuals. [...]

OpenAI is reportedly testing a new feature or product codenamed "Sonata," and it could be related to music or audio-related experiences on ChatGPT. [...]

OpenAI is internally testing a new update for ChatGPT, at least on the web. It'll begin rolling out in the coming weeks. [...]

Microsoft has released multiple emergency, out-of-band updates for Windows 10, Windows 11, and Windows Server to fix two issues caused by the January Patch Tuesday updates. [...]

The Canadian Investment Regulatory Organization (CIRO) confirmed that the data breach it suffered last year impacts about 750,000 Canadian investors. [...]

Google is testing "Skills" for Gemini in Chrome, which will allow AI in Chrome to perform tasks automatically, and it could challenge Perplexity Comet or Edge's Copilot mode. [...]

Google Chrome now lets you delete the local AI models that power the "Enhanced Protection" feature, which was upgraded with AI capabilities last year. [...]

Malicious Chrome extensions on the Chrome Web Store masquerading as productivity and security tools for enterprise HR and ERP platforms were discovered stealing authentication credentials or blocking management pages used to respond to security incidents. [...]

Another set of 17 malicious extensions linked to the GhostPoster campaign has been discovered in Chrome, Firefox, and Edge stores, where they accumulated a total of 840,000 installations. [...]

OpenAI's $8 ChatGPT Go subscription, which gives you 10x more messages, is now available in the United States and other regions. [...]

OpenAI has confirmed ChatGPT is getting ads in the coming weeks, but it promises that ads won't influence answers generated by ChatGPT. [...]

A cross-site scripting (XSS) flaw in the web-based control panel used by operators of the StealC info-stealing malware allowed researchers to observe active sessions and gather intelligence on the attackers' hardware. [...]

The identity of the Black Basta ransomware gang leader has been confirmed by law enforcement in Ukraine and Germany, and the individual has been added to the wanted list of Europol and Interpol. [...]

An advanced threat actor tracked as UAT-8837 and believed to be linked to China has been focusing on critical infrastructure systems in North America, gaining access by exploiting both known and zero-day vulnerabilities. [...]

Verizon has begun sending text messages with instructions on how to redeem a $20 account credit for last week's nationwide wireless outage. [...]

Microsoft confirmed that the KB5074109 January Windows 11 security update causes the classic Outlook desktop client to freeze and hang for users with POP email accounts. [...]

Attackers are now exploiting a critical Fortinet FortiSIEM vulnerability with publicly available proof-of-concept exploit code. [...]

​Cisco finally patched a maximum-severity AsyncOS zero-day exploited in attacks targeting Secure Email Gateway (SEG) appliances since November 2025. [...]

Microsoft has confirmed a new issue that prevents Windows 11 23H2 devices with System Guard Secure Launch enabled from shutting down. [...]