

The sensor in a webcam is sensitive to both visible and infra red (IR) radiation so the manufacturer adds a filter to stop the IR, otherwise it would produce unexpected results when it took photos.
Why doesn't Matthew Green, an encryption expert at Johns Hopkins University? "I have no excuse for not taking this seriously ...
but at the end of the day, I figure that seeing me naked would be punishment enough." While Zuckerberg probably does have any number of advanced persistent threats trying to break his digital security, normal people shouldn't be too complacent either.
Our picks and opinions are independent from any business incentives.
If you're one of those people who gets made fun of for putting a piece of tape over your webcam, don't worry—you're not crazy.
In the background, we can see that his laptop has a tape over the webcam, as well as something around the microphone port.
From a report on The Guardian: Even experts who don't cover their cameras think they should.
First we had a look at some light sources: In the visible range, turning on this very low powered lamp has virtually no effect on the brightness of the room, compared to the light in the ceiling.
The table lamp uses a conventional light bulb, but the ceiling light uses a compact fluorescent, or energy-saving, bulb.
Installing backdoors on compromised computers is a common way for some hackers to occupy their time.
On an unrelated note, it appears, Zuckerberg uses Mozilla's Thunderbird as his primary email client.