text: how do i contact yahoo to tell them someone hacked into my account? i recieved an email that my password had been changed today.  i wasn't the one who did it and want to report it. sry but my gf is having the same problem as u what is happening is that some 1 is using a prog called a cracker what it does is guesses a persons password until it gets the right password combination using proxys or servers i do know how they do it but i dont know how 2 prevent it sry i couldnt be much help but i hope it educates u a little