An update to a number of Panda antivirus programs Wednesday mistakenly flagged core files as malware, putting them in quarantine. In doing so, the antivirus system ceased working.
First reported by The Register, machines are left unstable, unusable, or unable to access the Internet. Panda’s free antivirus, retail 2015 service, and its enterprise cloud-based antimalware service are all affected.
It’s not clear how many machines are affected. The company took to Twitter to warn users: “Please, don’t reboot PCs. We’ll keep you posted.”