The wallets password was created using the RoboForm password manager platform.
Michael then saved the 20-character password as a text file and encrypted it with a tool called TrueCrypt.
He was worried that someone would hack into his computer and obtain the password.

At [that] time, I was really paranoid with my security, he said.
Thats when Michael contacted Grand again last June, hoping to convince him to help.
This flaw allowed the researchers to predict and regenerate the password from 2013.

While RoboForms passwords appear to be randomly generated, theyre not.
We ultimately got lucky that our parameters and time range was right.
If either of those were wrong, we would have … continued to take guesses/shots in the dark.

However, he wants to wait until the bitcoins reach a value of $100,000 each.
That I lost the password was financially a good thing.