LastPass Exposes macOS Atomic Infostealer Attack via Fake GitHub Repositories
In mid-2025, LastPass identified and warned users about a sophisticated information-stealing campaign targeting Apple macOS users. Attackers set up fraudulent GitHub repositories impersonating reputable projects, including LastPass, to distribute versions of the 'Atomic' infostealer malware. Unsuspecting users downloading these fake tools had their credentials, browser data, and sensitive files compromised. The campaign leveraged social engineering, search poisoning, and open-source developer trust to infiltrate victims’ systems, posing significant risk to both individual and enterprise security. The incident highlights continued abuse of trusted development platforms to target the software supply chain. This breach is noteworthy as it reflects the growing trend of attacker focus on macOS endpoints and the exploitation of open-source ecosystems. With supply chain attacks and infostealer campaigns rising sharply in 2025, organizations face increasing pressure to enhance their controls for code provenance, user awareness, and endpoint defense.
Kill Chain