The chances of a home computer having a keylogger installed and a hacker using information from it is very, very slight and most of the tales of keyloggers on home computers are apocryphal. However, apart form the URl, it is unwise to keep any passwords etc. on your computer. I am asked for my account number, a code number and 2 random letters of my password. If I were you I would keep the account number and 5 digit passcode away from your computer in case it is nicked. However a thief would still need your main password to get into your account.