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.”

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

On Monday, a report from 404Media found that a hacker obtained direct messages and CBP contact information from TeleMessage after Mike Waltz was spotted using the company’s modified version of Signal.