Extra#3658 <
> #3376
It's reasonable to some degree to expect that you keep your password secret. It's a different thing altogether to take information that is unavoidably known to lots of parties, or in many cases even outright essentially public info (like, stuff you can just buy as a database) as proof of identity, and then insist that you are legally responsible for a contract or whatever they made with someone who knew your date of birth or something.
It's really not much different than just throwing darts at a phone book, and then pretending that the fact they hit your name proves that you now have a contract with them ... no, it doesn't, and it's your fucking problem if you think it does.