Changing Passwords

I changed my email address at bt.com yesterday. They sent me an email to tell me I had changed the email address but only to the new email address. Duh!!! Had it been done by an intruder, they could now go and change the password, I'd be locked out and I wouldn't even know it.

Went to do the same thing at the Halifax Bank. They sent an email to tell me I had changed my email address but they sent it to both addresses - well done the Halifax.