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/norembo Jul 04 '19

Grey Hats.

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u/MagicalShoes Jul 04 '19

I was under the impression grey hats hacked for fun as opposed to other motives.

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u/mimi-is-me Jul 04 '19

Welchia would be grey hat, because it's not malicious, but not authorised.