alt Hacker NewsStill works like that.
The glasses have in the same hole a led light and a small light sensor (similar to the ones used in monitors to set up auto-brightness).
On start recording the glasses check if the light sensor is above a certain threshold, if it is then it starts recording and turns on the led light.
So, if you start recording and then cover the hole, it keeps recording because the check only happens on start. Even if they wanted to fix this by making the light sensor do a constant check it wouldn't work as the privacy led light indicator is triggering the same sensor, which is a terrible design choice.
And to disable the light is as easy as using a small drill bit and breaking either the light sensor module or the led light. They can detect if it's been tampered with and they put a giant notice saying the privacy light is not working but they still let you record anyways lol.
Replies
> The privacy led light could just turn off for a couple of milliseconds (or less) while the light sensor performs its check.
True but then that would mean a blinking led light instead of a constant turned on led light, which is a different product requirement from what it currently does.
Sounds like it would be pretty easy to fake out with a custom circuit too, for those that are willing to go beyond ‘whoops how did that happen’ levels.
> Even if they wanted to fix this by making the light sensor do a constant check it wouldn't work as the privacy led light indicator is triggering the same sensor,
The privacy led light could just turn off for a couple of milliseconds (or less) while the light sensor performs its check.