WASHINGTON (AP) — The U.S. Treasury Department has cut its contracts with Booz Allen Hamilton, after a former contractor who worked for the firm was charged and subsequently imprisoned for leaking tax information to news outlets about thousands of the country’s wealthiest people, including President Donald Trump.

The latest move is in line with Trump administration efforts to exact retribution on perceived enemies of the president and his allies.

In 2024, former IRS contractor Charles Edward Littlejohn of Washington, D.C. — who worked for Booz Allen Hamilton — was sentenced to five years in prison after pleading guilty to leaking tax information about Trump and others to news outlets.

Littlejohn gave data to The New York Times and ProPublica between 2018 and 2020 in leaks that appeared to be “unparalleled in the IRS’s history,” prosecutors said.

In court documents, prosecutors said Littlejohn had applied to work as a contractor to get Trump’s tax returns and carefully figured out how to search and extract tax data to avoid triggering suspicions internally.

Treasury says the agency has 31 contracts with Booz Allen Hamilton totaling $4.8 million in annual spending and $21 million in total obligations.

Treasury Secretary Scott Bessent said in statement that the firm “failed to implement adequate safeguards to protect sensitive data, including the confidential taxpayer information it had access to through its contracts with the Internal Revenue Service.”

A representative from Booz Allen Hamilton was not immediately available for comment.