can anybody help please, my wally passphrase change itself!! i don't know how come. I'm very new. first the wallet couldn't turn to lock after i unlocke for staking then i just change passphrase to a very simple one then it locked but for while after i tried to learn more about the wallet then want to unlock it for staking, OMG! the passphrase was changed!!!  Can anybody help please...how come???  Help please.