Tax-related identity theft happens when someone steals your personal information to commit tax fraud. Your taxes can be affected if your Social Security number is used to file a fraudulent return or to claim a refund or credit. Information for Individuals Taxpayer Guide to Identity Theft Know the signs of identity theft, take action if you are a victim and protect your data and identity. Taxes. Security. Together. We all have a role to play in protecting your data. Information for Tax Professionals Businesses How We Combat Identity Theft Security Summit The IRS, state tax agencies and private industry partner to detect, prevent and deter tax-related identity theft and fraud. Phishing and Online Scams The IRS doesn't initiate contact with taxpayers by email, text messages or social media channels to request personal or financial information. IRS Commissioner Urges Taxpayers to Protect Their Data Avoid Phishing Emails Easy Steps to Protect Your Computer and Phone