One more reason to never automatically update software!

Hackers hid malware in CCleaner software
https://www.theverge.com/2017/9/18/1...lware-security

"download servers used by Avast (the company that owns CCleaner) were
compromised to distribute malware inside CCleaner"

"For a period of time, the legitimate signed version of CCleaner 5.33 being
distributed by Avast also contained a multi-stage malware payload that rode
on top of the installation of CCleaner"

IMHO, almost never does a software update confer any meaningful benefits.