Data pertaining to the U.S. Customs and Border Protection, Coinbase, and financial service providers like Scotiabank has reportedly been compromised.

After a hacker reportedly stole data from TeleMessage Signal that included references to CBP, the agency has now confirmed that it used the app but has now “disabled” it as a “precautionary measure.”

A hacker breached TeleMessage, a company that sells a modified version of Signal to the US government. Mike Waltz was spotted using it last week.