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.

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