Latest cybersecurity reporting from selected sources.

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter Novel Java-Based QuimaRAT Targets Windows, macOS, and Linux   Vibe Coded Extortion: Avalon’s Path from Legal Lure to CrownX Ransom Capabilities Armored Likho digging a snake pit: inside the covert BusySnake Stealer campaign   RedWing: A […]

Cybersecurity researchers have flagged a novel Java-based remote access trojan (RAT) called QuimaRAT that's capable of targeting Windows, Linux, and macOS environments

Cybersecurity researchers have flagged a new malware artifact generated using DeepSeek that constructed a novel attack path combining "unrealistic browser-malware concepts with a real browser capability" to turn it into a working ransomware technique that runs entirely inside the browser on both Windows and Android devices

ReliaQuest report warns of a surge in ClickFix social engineering attacks against Windows and macOS users

Hackers are exploiting a recently disclosed critical vulnerability (CVE-2026-48558) in SimpleHelp to deploy Djinn Stealer, a previously undocumented cross-platform information stealer targeting Windows, macOS, and Linux. [...]

The SHub Reaper stealer, which hides behind fake WeChat and Miro installers, marks a shift from ClickFix social engineering to Apple script-based execution.

Video of Industry Figures Harvested During Meetings and Used to Lure Future VictimsNorth Korean hackers are pretending to be cryptocurrency insiders, in an attempt to trick targets into accepting Calendly calendar invites. The social engineering ruse is designed to infect Windows and macOS systems with crypto stealers, and to harvest video of real-life people for future lures.

Social engineering: 'low-cost, hard to patch, and scales well' North Korean criminals set on stealing Apple users' credentials and cryptocurrency are using a combination of social engineering and a fake Zoom software update to trick people into manually running malware on their own computers, according to Microsoft.…

Hackers hijacked the npm account of the Axios package, a JavaScript HTTP client with 100M+ weekly downloads, to deliver remote access trojans to Linux, Windows, and macOS systems. [...]

The popular HTTP client known as Axios has suffered a supply chain attack after two newly published versions of the npm package introduced a malicious dependency that delivers a trojan capable of targeting Windows, macOS, and Linux systems

Cybersecurity researchers have flagged malicious Packagist PHP packages masquerading as Laravel utilities that act as a conduit for a cross-platform remote access trojan (RAT) that's functional on Windows, macOS, and Linux systems

North Korean hackers are running tailored campaigns using AI-generated video and the ClickFix technique to deliver malware for macOS and Windows to targets in the cryptocurrency sector. [...]

Cybersecurity researchers have discovered a malicious Rust package that's capable of targeting Windows, macOS, and Linux systems, and features malicious functionality to stealthily execute on developer machines by masquerading as an Ethereum Virtual Machine (EVM) unit helper tool

Cybersecurity researchers have discovered a set of 10 malicious npm packages that are designed to deliver an information stealer targeting Windows, Linux, and macOS systems

A financially motivated threat actor codenamed UNC5142 has been observed abusing blockchain smart contracts as a way to facilitate the distribution of information stealers such as Atomic (AMOS), Lumma, Rhadamanthys (aka RADTHIEF), and Vidar, targeting both Windows and Apple macOS systems

Upgraded nasty slips into Xcode builds, steals crypto, and disables macOS defenses The long-running XCSSET malware strain has evolved again, with Microsoft warning of a new macOS variant that expands its bag of tricks while continuing to target developers.…

Cybersecurity researchers have discovered an updated version of a known Apple macOS malware called XCSSET that has been observed in limited attacks

Microsoft Threat Intelligence reports that a new variant of the XCSSET macOS malware has been detected in limited attacks, incorporating several new features, including enhanced browser targeting, clipboard hijacking, and improved persistence mechanisms. [...]

Cybersecurity researchers have discovered two new malware families, including a modular Apple macOS backdoor called CHILLYHELL and a Go-based remote access trojan (RAT) named ZynorRAT that can target both Windows and Linux systems

Cryptocurrency users are the target of an ongoing social engineering campaign that employs fake startup companies to trick users into downloading malware that can drain digital assets from both Windows and macOS systems