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Mike Waltz, who was until Thursday U.S. National Security Advisor, has inadvertently revealed he is using an obscure and unofficial version of Signal that is designed to archive messages, raising questions about what classification of information officials are discussing on the app and how that data is being secured, 404 Media has found.
The most incredible part is that this was discovered because he doesn’t have the basic restraint to not check his phone while cameras are around, so news photographers happened to get pictures of his phone screen.