Malware scanners...
Though this has now been uncovered as a mistake at HP, issues with malware scanners are not uncommon. And Apple's XProtect is essentially a first line of defense rudimentary anti-malware scanner.
I used to work for one of the big AV software companies and every couple of months one of our competitors would have a PR disaster on their hands as their software had identified a vital Windows system file as malware and had quarantined or removed it. Cue headlines with hundreds of thousands or even millions of machines that would suddenly not boot any more.
Yet, nobody used this as a cheap shot at said competitor because every one knew this stuff happened and you could be next. And we were next, at some point. I forget which file it was but it was days of negative media, support departments overwhelmed and tech staff writing blog posts to explain to very novice users how to put a specific Windows system file back in a place they've never heard of before, using tools they'd never used before.
Biting the hand that feeds IT
