https://x.com/runasand/status/2017659019251343763?s=20
The FBI was able to access Washington Post reporter Hannah Natanson's Signal messages because she used Signal on her work laptop. The laptop accepted Touch ID for authentication, meaning the agents were allowed to require her to unlock it.
This command will make your MacBook hibernate when lid is closed or the laptop sleeps, so RAM is written to disk and the system powers down. The downside is that it does increase the amount of time it takes to resume.
A nice side benefit though, is that fingerprint is not accepted on first unlock, I believe secrets are still encrypted at this stage similar to cold boot. A fingerprint still unlocks from screensaver normally, as long as the system does not sleep (and therefore hibernate)
Does this mean that the Signal desktop application doesn't lock/unlock its (presumably encrypted) database with a secret when locking/unlocking the laptop?