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Apple slips up on ChillyHell macOS malware, lets it past security . . . for 4 years

'We do believe that this was likely the creation of a cybercrime group,' threat hunter tells The Reg ChillyHell, a modular macOS backdoor believed to be long dormant, has likely been infecting computers for years while flying under the radar, according to security researchers who spotted a malware sample uploaded to VirusTotal in May.

Published: 2025-09-10T19:06:34