Did you use a brainwallet (ie, the hash of the password as the private key)?
It looks like the funds were drained within an hour of you loading the bounty. People have made giant lookup tables of brainwallet passwords and monitor the corresponding addresses for transactions. Reddit user u/btcrobinhood is known for doing this and returning the funds.
mprime1|3 years ago
Whoever you are, well done!
(I'd love to know how!)
qot|3 years ago
It looks like the funds were drained within an hour of you loading the bounty. People have made giant lookup tables of brainwallet passwords and monitor the corresponding addresses for transactions. Reddit user u/btcrobinhood is known for doing this and returning the funds.