I’m not aware of any sites tracking our warrant canaries, but there are standards for machine-readable warrant canaries to make this easier
Edit: oh, it looks like the EFF, Calyx Institute, Freedom of the Press Foundation, NYU Law, the Berkman Center, and a few other orgs run a service that monitors warrant canaries called Canary Watch
This update from 2016 says they were monitoring 70 org’s canaries
Edit 2: oh, looks like they silently shut it down some years ago :( well, we adopted the autocanary standard from FLM linked-above, so it shouldn’t be hard for some canary observatory to consume and track our canaries.
We’ve had solutions to the “laptop stolen when unlocked” problems for years. BusKill uses a cable that you clip to your belt for this. It’s simple. You don’t need to film your employees all day long to solve this problem.
If the connection between you to your computer is severed, then your device will lock, shutdown, or shred its encryption keys – thus keeping your encrypted data safe from thieves that steal your device.