OK, I have to go with another warning here. Recently after doing some business via computer the very next day I received what appeared to be emails from those businesses.
The emails stated (differently but meaning much the same) that there was confusion over my account and if I didn't clear it up I'd have to be cancelled. They included a form for me to fill out which included name, address, SSN, credit card number, etc. I knew one was a scam because I had just ordered from that company and to do so I had to then confirm the information in my account. But the other transaction was brand new so I was tempted until I notice the top of the email form said something about click here for help with this form. That button went nowhere. So I contacted the company by phone and they indeed had been having problems with hackers ripping off their customers. They requested a copy of the scam email and I sent it along. Unfilled.
As I know Yahoo, Prodigy and Compuserve have mentioned many times in the past they will NEVER ask for personal info via email. If you contact them and are required to fill out a form that's one thing. Do NOT fill out forms you get as email. PLEASE.
The credit rating you save may be your own.