Top national security officials for President Donald Trump, including his defense secretary, messaged upcoming military strikes in Yemen to a group chat in a secure app, Signal, that included The Atlantic’s editor-in-chief. So, what is Signal?
What is Signal?
Top national security officials for President Donald Trump, including his defense secretary, messaged upcoming military strikes in Yemen to a group chat in a secure app, Signal, that included The Atlantic’s editor-in-chief. So, what is Signal?