Goodbar added the account to his main, weareking never logged off 400000, so when he refreshed, he saw he had gotten into Goodbar's account. He never had to log in or crack any passwords.
It really is the EM equivalent of the Trojan Horse.
No, I was respecting Goodbar's wishes for the exact details not to be known. The sharing was accidental, weareking wasn't even aiming to get access. He got the opportunity and took advantage of it. It was a mistake.
You could spin it how you said it though, but it makes it sound much worse.