Data Miner

 is an Fallout 3 achievement on Xbox 360 and PC and a trophy on PlayStation 3.

It is granted for hacking 50 terminals.

Exploit

 * (PC Only) If you just want the achievement and don't care about cheating, find a computer which you are able to unlock, unlock it, then use the console command "lock" and unlock the computer again. You can do this repeatedly until reaching the 50 required unlocks.