The Treasury Department’s inspector general is investigating whether confidential banking information related to President Trump’s personal lawyer Michael Cohen was leaked, the Washington Post reported Wednesday.

Rich Delmar, a counsel to the IG, said that in response to media reports, the office was “inquiring into allegations” that Suspicious Activity Reports on Cohen’s banking transactions were “improperly disseminated.”

Michael Avenatti, the lawyer for porn star Stormy Daniels, released a summary of the information Tuesday, showing that a number of companies, including one connected to a Kremlin-linked Russian billionaire, paid Cohen’s firm more than $1 million, supposedly for assorted services.

Avenatti declined to reveal the source of his information during an interview with the DC paper.

“The source or sources of our information is our work product, and nobody’s business,” Avenatti said.

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