Claims that former U.S. President Joe Biden's administration initially authorized the use of Signal by government officials spread in late March 2025 after The Atlantic reported national security ...

Secretary of Defense Pete Hegseth risked compromising sensitive military information, which could have endangered American troops and mission objectives, when he used Signal in March of this year to ...

US officials reacted with shock— and in many cases, horror — to revelations in The Atlantic that top members of President Donald Trump’s Cabinet sent detailed operational plans and other likely highly ...

The leak of Houthi strike plans by the Trump administration to a journalist was not the result of a hack but an apparent human error. Still, it sparked debate over ...