Or said differently: signal will probably resist attempts to hack the chat, but it won’t resist the “beat him with a wrench til he unlocks his phone” strategy. That’s why secure comms for governments are usually done in a secure room in an embassy, on hardwired devices.
Unsecure ≠ Insecure
Unsecure in this context generally means not in compliance with military and classified security practices and procedures for “securing” information.
Signal is secure in the sense of being strong end-to-end cryptography.
Or said differently: signal will probably resist attempts to hack the chat, but it won’t resist the “beat him with a wrench til he unlocks his phone” strategy. That’s why secure comms for governments are usually done in a secure room in an embassy, on hardwired devices.