The flash drive was encrypted with 512-bit encryption? This show is supposed to be about a computer nerd, so we're assuming that a decent-sized portion of the fan base knows something about computers. They were brute-forcing 512-bit encryption? Here's what one site had to say:
"Imagine a computer that is the size of a grain of sand that can test keys against some encrypted data. Also imagine that it can test a key in the amount of time it takes light to cross it. Then consider a cluster of these computers, so many that if you covered the earth with them, they would cover the whole planet to the height of 1 meter. The cluster of computers would crack a 128-bit key on average in 1,000 years."
Ummmm... yeah. Not quite possible.