Oh agree it may have not been Signal itself, and lord knows there are thousands of vulnerabilities on any given system. I don't think the "how" is what's important here though.
Maybe another way of looking at it: maybe the white hats knew Tucker was being monitored by the cabal through Signal and wanted to make him aware that he was being watched, and also send a message to the cabal that they could read Signal at any time?
Oh agree it may have not been Signal itself, and lord knows there are thousands of vulnerabilities on any given system. I don't think the "how" is what's important here though.
Maybe another way of looking at it: maybe the white hats knew Tucker was being monitored by the cabal through Signal and wanted to make him aware that he was being watched, and also send a message to the cabal that they could read Signal at any time?
Bingo!