Post #3087441
2026-02-26 18:27 UTC
@agowa338@chaos.social @InfobloxThreatIntel@infosec.exchange I was literally just thinking about the one Fedi instance running on .ARPA domain. Was one of the first things I found when I joined Fedi. Very cool.
Unfortunate, but unsurprising, to see the technique adapted for harm.
Replies (1)
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@agowa338@chaos.social 2026-02-26 20:25
@trashpanda@m.alittlenook.net @InfobloxThreatIntel@infosec.exchange Oh I once had a coworker that used such shenanigans to kill some enterprise mail servers of "insert big cloud provider here" for quite a while with a single email from a mailserver running in such a domain :P Edit: I should add that it was unintentional. They didn't intend to kill that cloud providers mail service for everyone globally...