Yes, there are numerous fraudulent and "third-party" websites designed to trick travelers into overpaying for TSA PreCheck or stealing their personal information. In 2026, the TSA has issued several warnings about sites that mimic the official government look but use ".com" or ".org" instead of the official ".gov" domain. Some of these sites are "scams" that take your money and provide nothing, while others are "expediting services" that charge an extra $50–$100 on top of the government fee just to fill out the form for you. A major red flag is any site that asks for payment for a first-time application online; the TSA strictly requires that first-time applicants pay their enrollment fee in person at an authorized enrollment center at the time of their appointment. For renewals, you can pay online, but you should always start at tsa.gov to ensure you are on the legitimate portal. Scammers also use "high-pressure" language like "Final Notice" or "Account Expiring Today" in emails to lure people into clicking malicious links that lead to these fake sites.