You should treat your Social Security number as confidential information and avoid giving it out unnecessarily. You should keep your Social Security card in a safe place with your other important papers. Do not carry it with you unless you need to show it to an employer or service provider.

We do several things to protect your number from misuse. For example, we require and carefully inspect proof of identity from people who apply to replace lost or stolen Social Security cards, or for corrected cards. One reason we do this is to prevent people from fraudulently obtaining Social Security numbers to establish false identities. We maintain the privacy of Social Security records unless:

The law requires us to disclose information to another government agency; or
Your information is needed to conduct Social Security or other government health or welfare program business. You should be very careful about sharing your number and card to protect against misuse of your number. Giving your number is voluntary even when you are asked for the number directly. If requested, you should ask:

Why your number is needed;
How your number will be used;
What happens if you refuse; and
What law requires you to give your number.
The answers to these questions can help you decide if you want to give your Social Security number. The decision is yours

The information provided on this page was obtained from Federal Citizen Information Center: http://www.pueblo.gsa.gov/