On July 25, 2024, the United States Department of Justice (DOJ) indicted an individual linked to the North Korean threat actor that Microsoft tracks as Onyx Sleet.
Microsoft Threat Intelligence collaborated with the Federal Bureau of Investigation (FBI) in tracking activity associated with Onyx Sleet. Microsoft will continue to closely monitor Onyx Sleet’s activity to assess changes following the indictment. First observed by Microsoft in 2014, Onyx Sleet has conducted cyber espionage through numerous campaigns aimed at global targets with the goal of intelligence gathering. More recently, it has expanded its goals to include financial gain.
Read more…
Source: Microsoft
Related:
- React2Shell RCE flaw exploited by Chinese hackers hours after disclosure
December 8, 2025
Just as the experts predicted, cybercriminals are now actively exploiting the critical severity vulnerability in React Server Components (RSC) that was discovered late last week. To make matters worse, the crooks observed abusing the bug seem to be working for the Chinese government. Late last week, the React team published a security advisory detailing a pre-authentication ...
- AI-Automated Threat Hunting Brings GhostPenguin Out of the Shadows
December 8, 2025
Hunting high-impact, advanced malware is a difficult task. It becomes even harder and more time-consuming when defenders focus on low-detection or zero-detection samples. Every day, a huge number of files are sent to platforms like VirusTotal, and the relevant ones often get lost in all that noise. Identifying malware with low or no detections is ...
- How phishers hide banking scams behind free Cloudflare Pages
December 8, 2025
During a recent investigation, we uncovered a phishing operation that combines free hosting on developer platforms with compromised legitimate websites to build convincing banking and insurance login portals. These fake pages don’t just grab a username and password–they also ask for answers to secret questions and other “backup” data that attackers can use to bypass multi-factor ...
- Petco’s security lapse affected customers’ SSNs, drivers’ licenses and more
December 8, 2025
Last week, pet products and services giant Petco confirmed that it experienced a data breach involving customers’ personal information, without specifying what type of data was affected. On Friday, in a legally required filing with Texas’ attorney general’s office, Petco reported that the affected data included: names, Social Security numbers, driver’s license numbers, financial information such ...
- Poland detains three Ukrainians over possession of hacking equipment
December 8, 2025
A Polish court has ordered three Ukrainian nationals held on charges of computer fraud and possessing hardware and software designed to commit crimes, including a suspected attempt to damage IT data deemed crucial to national defence. The three men, aged 43, 42 and 39, were detained after a roadside check in Warsaw, Polish state news agency ...
- New Prompt Injection Attack Vectors Through MCP Sampling
December 5, 2025
This article examines the security implications of the Model Context Protocol (MCP) sampling feature in the context of a widely used coding copilot application. MCP is a standard for connecting large language model (LLM) applications to external data sources and tools. We show that, without proper safeguards, malicious MCP servers can exploit the sampling feature for ...