(Scams Subreddit): [Money for your] GitHub PGP keys – is this a scam?
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This is probably a social engineering attack - presumably the attacker is gonna want the key pair in the hope the private key will unlock... something else.
What is the default linux ssh key used for that would make a good target? Personal sever instances would be hard to locate, so it is probably something central like cloud provider authentication?
EDIT: Disappointingly, it's this https://github.com/handshake-org/hs-airdrop
It was worth $2k last I heard