
Malware?
Interesting that plain old malware would give hackers access to sensitive banking systems. Maybe those banks are relying too much on Windows? Either that, or they targeted banks with really bad security systems ... or both things.
And even with lax security, I'm amazed that daily reconciliation didn't catch up with this. Because most of the "hacking cases" I've known about are caught by this, and the would-be rich hackers will instead end up in jail when they try to withdraw their iffy funds.