Cyber Security Tip ST05-019
Preventing and Responding to Identity Theft
Identity theft, or identity fraud, is a crime that can have substantial financial and emotional consequences. Take precautions with personal information; and if you become a victim, act immediately to minimize the damage.
Is identity theft just a problem for people who submit information online?
You can be a victim of identity theft even if you never use a computer. Malicious people may be able to obtain personal information (such as credit card numbers, phone numbers, account numbers, and addresses) by stealing your wallet, overhearing a phone conversation, rummaging through your trash (a practice known as dumpster diving), or picking up a receipt at a restaurant that has your account number on it. If a thief has enough information, he or she may be able to impersonate you to purchase items, open new accounts, or apply for loans.
The Internet has made it easier for thieves to obtain personal and financial data. Most companies and other institutions store information about their clients in databases; if a thief can access that database, he or she can obtain information about many people at once rather than focus on one person at a time. The internet has also made it easier for thieves to sell or trade the information, making it more difficult for law enforcement to identify and apprehend the criminals.
How are victims of online identity theft chosen?
Identity theft is usually a crime of opportunity, so you may be victimized simply because your information is available. Thieves may target customers of certain companies for a variety of reasons: a company database is easily accessible, the demographics of the customers are appealing, there is a market for specific information, etc. If your information is stored in a database that is compromised, you may become a victim of identity theft.
Are there ways to avoid being a victim?
Unfortunately, there is no way to guarantee that you will not be a victim of online identity theft. However, there are ways to minimize your risk:
* Do business with reputable companies-- Before providing any personal or financial information, make sure that you are interacting with a reputable, established company. Some attackers may try to trick you by creating malicious web sites that appear to be legitimate, so you should verify the legitimacy before supplying any information (see “Avoiding Social Engineering” and “Phishing Attacks” and “Understanding Web Site Certificates” for more information).
* Take advantage of security features - Passwords and other security features add layers of protection if used appropriately (see “Choosing and Protecting Passwords” and “Supplementing Passwords” for more information).
* Check privacy policies- Take precautions when providing information, and make sure to check published privacy policies to see how a company will use or distribute your information (see “Protecting Your Privacy” and “How Anonymous Are You?” for more information). Many companies allow customers to request that their information not be shared with other companies; you should be able to locate the details in your account literature or by contacting the company directly.
* Be careful what information you publicize - Attackers may be able to piece together information from a variety of sources. Avoid posting personal data in public forums (see “Guidelines for Publishing Information Online” for more information).
* Use and maintain anti-virus software and a firewall – Protect yourself against viruses and Trojan horses that may steal or modify the data on your own computer and leave you vulnerable by using anti-virus software and a firewall (see “Understanding Anti-Virus Software” and “Understanding Firewalls” for more
information). Make sure to keep your virus definitions up to date.
* Be aware of your account activity- Pay attention to your statements, and request copies of your credit reports from the main credit reporting companies on a yearly basis.
How do you know if your identity has been stolen?
Companies have different policies for notifying customers when they discover that someone has accessed a customer database. However, you should be aware of changes in your normal account activity. The following are examples of changes that could indicate that someone has accessed your information:
* unusual or unexplainable charges on your bills
* phone calls or bills for accounts, products, or services that you do not have
* failure to receive regular bills or mail
* new, strange accounts appearing on your credit report
* unexpected denial of your credit card
What can you do if you think, or know, that your identity has been stolen?
Recovering from identity theft can be a long, stressful, and potentially costly process. Many credit card companies have adopted policies that try to minimize the amount of money you are liable for, but the implications can extend beyond your existing accounts. To minimize the extent of the damage, take action as soon as possible:
* Contact companies, including banks, where you have accounts- Inform the companies where you have accounts that someone may be using your identity, and find out if there have been any unauthorized transactions. Close accounts so that future charges are denied. In addition to calling the company, send a letter so there is a record of the problem.
* Contact the main credit reporting companies (Equifax, Experian, TransUnion)- Check your credit report to see if there has been unexpected or unauthorized activity. Have fraud alerts placed on your credit reports to prevent new accounts being opened without verification.
* File a report - File a report with the local police so there is an official record of the incident. You can also file a complaint with the Federal Trade Commission.
* Consider other information that may be at risk - Depending what information was stolen, you may need to contact other agencies; for example, if a thief has access to your Social Security number, contact the Social Security Administration. You should also contact the Department of Motor Vehicles if your driver's license or car registration have been stolen.
The following sites offer additional information and guidance for recovering from identity theft:
* Federal Trade Commission -
* United States Department of Justice -
* Social Security Administration -
Author: Mindi McDowell
Produced 2005 by US-CERT, a government organization.
This document can also be found at <http://www.us-cert.gov/cas/tips/ST05-019.html>