CCleaner was hacked to spread malware to millions of users for a month

https://thenextweb.com/security/2017/09/18/ccleaner-hacked-malware-distribute/#.tnw_V1sJxeTM

https://www.bleepingcomputer.com/news/security/ccleaner-compromised-to-distribute-malware-for-almost-a-month/

https://www.theverge.com/2017/9/18/16325202/ccleaner-hack-malware-security

https://www.theinquirer.net/inquirer/news/3017504/ccleaner-hack-supply-chain-attack-saw-app-install-malware-on-users-machines