Alert over booby-trapped security software

Piriform told users a booby-trapped version of its CCleaner software had been made available in August and September. Millions of people use the CCleaner program to remove unwanted junk from Android phones and Windows PCs. Piriform's owner, Avast, said it had managed to remove the compromised version before any harm had been done. It appears that it was only the Windows version of CCleaner that was compromised.