“On Tuesday, March 11, I received a connection request on Signal from a user identified as Michael Waltz. [..] I assumed that the Michael Waltz in question was President Donald Trump’s national security adviser. I did not assume, however, that the request was from the actual Michael Waltz.” https://www.theatlantic.com/politics/archive/2025/03/trump-administration-accidentally-texted-me-its-war-plans/682151/