In Other News: Tor Exit Relays Hijacked, Banks Spot Rogue AI Agents, Self-Rebuilding macOS Ransomware
SecurityWeek’s weeklycybersecurity news roundupoffers a concise overview of important developments that may not receive full standalone coverage yet remain relevant to the broader threat landscape.
This curated summary highlights key stories across vulnerability disclosures, emerging attack methods, policy updates, industry reports, and other noteworthy events to help readers stay well-informed about the evolving cybersecurity environment.
Here are this week’s highlights:
Heartbreaker macOS ransomware rebuilds itself from source
Researcher Patrick Wardle has analyzed Heartbreaker, a Rust-based macOS ransomware sample that was uploaded to VirusTotal in May 2025 and, as of his writing, was still undetected by every antivirus engine on the service. After attempting to set up a LaunchAgent for persistence, it encrypts files in the user’s Downloads folder. It then tries to change its hash by taking its own embedded source code, randomizing identifiers and adding junk functions, and recompiling itself (even trying to install Rust if...
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