The company-developer of the popular application detected malware in the 32-bit version of the v5.33.6162 of CCleaner and the v1.07.3191 of CCleaner Cloud. According to Piriform, 3% of the users used the affected software — about 2.3 million people. Piriform claims that the authors of the malware haven’t used the stolen information and the problem was eliminated.
We don’t recommend installing such programs and, if necessary, use a separate virtual machine with hard firewall settings.