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Social Security Number Basics

A Social Security number (SSN) is a nine digit identification number that has become a universal identifier for both the government and the private sector in the U.S.

Q&A

Can I change my Social Security number?

The Social Security Administration will only issue a new Social Security number (SSN) in very specific or extreme situations, so it’s not likely that you’d be able to change yours.

Those rare situations in which they might change your SSN are if

Q&A

If I get a call saying that I won a contest, do I need to give my Social Security number?

No. A real contest won’t ask for your Social Security number (SSN) over the phone (you’ll have to give it in writing).

Q&A

Why is it important to protect my Social Security number?

A Social Security number can be used to steal your identity (commonly called identity theft) to commit fraud, open new credit and bank accounts, get medical care/other benefits and obtain employment.

Q&A

When am I required to provide my Social Security number to a business?

There are a few situations in which you must provide your Social Security (SSN) number to a business, including

Guides

Reducing Your Risk of Identity Theft

Others can get your personal information in many ways including

data breaches discarded documents stolen wallets/purses stolen mail phishing

While you can't always prevent identity theft, you can reduce your risk.

Q&A

Do I have to show my ID when I buy something with a credit card?

With Visa and MasterCard, no. They both have rules that limit stores from requiring you to show your ID as a condition of purpose. These rules also make them accept your card even if you refuse to show your ID.

Advocacy

Social Security Numbers in the Private Sector: Comments to the Federal Trade Commission

Comments Submitted to the Federal Trade Commission
by Privacy Rights Clearinghouse

Project No. P075414

September 5, 2007