[djhn]

In a company owned headset, that measures your resting heart rate, blood pressure and eye movement with a dystopian sensor/camera setup to monitor your body language.

[Gigachad]

Could measure your brain activity to give you a notification to stop slacking off.

Or detect non typical brain activity to alert a manager to check the worker isn’t playing games or looking at memes.

[asteroidbelt]

You can do it already by installing malware on employee computers.