Known: Signal is a publicly available app that provides encrypted communications, but it can be hacked. It is not approved ...

The Signal thread included President Donald Trump's national security advisor Michael Waltz, Defense Secretary Pete Hegseth, ...

Because Signal uses end-to-end encryption, experts agree it is more secure than conventional texting - but it could be hacked ...

Targeted inhibition of a "signal jammer" protein may improve how tumors respond to immunotherapy. Published today in Nature, a new study demonstrates how some cancer cells use the protein voltage ...