>https://www.404media.co/the-signal-clone-the-trump-admin-uses-was-hacked/
TeleMessage apps are not approved for use under the US government's Federal Risk and Authorization Management Program, or FedRAMP, and yet they seem to be proliferating. Leaked data reportedly from TM Signal indicates that multiple US Customs and Border Protection agents may be using the Signal look-alike. When asked about the breach and whether CBP officers use TM Signal, the agency told WIRED, “We're looking into this.”
So who's authorizing installation of these apps which may/may not be approved at…
https://marketplace.fedramp.gov/products