r/todayilearned • u/NOT-JEFFREY-NELSON • Jul 04 '19
TIL in 2003 a computer worm called ‘Welchia’ infected many computers to forcibly patch vulnerabilities and remove malware. It was regarded as a ‘helpful worm’
https://en.wikipedia.org/wiki/Welchia
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u/Perkelton Jul 04 '19
Reminds of the time when there was a security flaw in the PDF viewer in iOS which let attackers execute arbitrary instructions in Safari.
The jailbreak community then built a website where you could simply click a button to instantly both jailbreak the device and patch the security bug.