On Wednesday, The Atlantic published a fuller look at the contents of the messages in this group chat, including sensitive details about U.S. strikes that experts say almost certainly were highly ...

The defense secretary sent sensitive information about strikes in Yemen to an encrypted group chat that included his wife and brother, people familiar with the matter said. By Greg JaffeEric Schmitt ...

Moxie Marlinspike, the cryptographic prodigy who wrote the code that underpins Signal and WhatsApp, has a new project—and it ...