WASHINGTON, D.C. — Immigration and Customs Enforcement (ICE) signed a contract with Thundercut Technology LLC on June 5. The contract is valued at $9,968,353.56 and covers ITIN data subscription and analytics for Homeland Security Investigations (HSI) agents for use in fraud investigations.

Individual Taxpayer Identification Numbers (ITINs) are identifiers used by undocumented immigrants and others who cannot obtain a Social Security number. Thundercut resells technology and surveillance products to the United States government. ICE and Customs and Border Protection have previously purchased smartphone location data from commercial vendors. ICE also purchased access to a tool called Webloc to monitor mobile devices in specific neighborhoods and previously bought phone, water, electricity, and utility data before commercial sales of that information ceased.

Senator Ron Wyden said, "A court has already struck down an agreement between the IRS and Homeland Security to illegally share ITINs and other personal information." Wyden also stated, "A contract to buy that same information from private data brokers is a clear end-around both taxpayer privacy laws and a court order."

In April 2025, the IRS agreed to provide ICE with taxpayer identification numbers and last-known addresses for over 1.2 million people. A federal judge temporarily blocked this data-sharing agreement in November 2025. In February 2026, a second federal judge blocked the arrangement, citing risks of taxpayer misidentification. The IRS admitted to inappropriately sharing information with ICE, according to the Taxpayer Inspector General for Tax Administration. A report from the inspector general indicated that the IRS failed to consistently and accurately match taxpayer information with ICE records.

Senator Ron Wyden said, "It looks for all the world like Trump is trying to skirt the law and a court order to fuel his mass-deportation campaign." Nearly 90 percent of HSI officials, more than 6,000 personnel, have been reassigned to immigration enforcement duties. HSI officials were previously responsible for investigations that included money laundering and child abuse cases.