Offer your thoughts or opinion on the input financial query or topic using your financial background.

Is Pension Benefit Information (aboutmyletter.com) legitimate?
To boil down what mgkrebbs said: Yes, you should send back the form, provided that it doesn't ask for any more information than address, current telephone number, and email address.  Don't ever, ever provide any bank account information. Nor social security number unless you're absolutely positive of the validity of the requestor. Phishing via regular mail is very rare.  It's way expensive compared to email, which is basically free, plus the U.S. Postal Service takes mail fraud fairly seriously (and has the legal statutes to prosecute).   So: don't obsess; send the form back.