Signal says its systems are secure but it is taking reports of targeted attempts to hack some officials "very seriously".

The FBI’s Internet Crime Complaint Center issued a public service announcement on December 19 warning that scammers are impersonating senior U.S. officials in a malicious messaging campaign that ...

Russian hackers allegedly pose as "Signal support" and try to phish victims. The scheme has already compromised the messages of Dutch government employees.

Signal, the secure messaging app, warned that "government officials and journalists" had experienced their accounts being ...