Users on Elon Musk’s social media platform X were not able to share or post links to the encrypted messaging app Signal on Monday and were greeted with various failure notifications when they tried to ...

The National Security Agency sent out an operational security special bulletin to its employees in February 2025 warning them of vulnerabilities in using the encrypted messaging application Signal, ...

Secretary of Defense Pete Hegseth is facing renewed scrutiny after news surfaced that he used a second encrypted group chat to share sensitive military information about last month's strikes in Yemen.

Several days after top national security officials accidentally included a reporter in a Signal chat about bombing Houthi sites in Yemen, a Pentagon-wide advisory warned against using the messaging ...