He revealed his security measures in a photo fail...
It's hopeful to think that even Facebook founder and all round social media guru Mark Zuckerberg is prone to a bit of paranoia every now and then.
In a post celebrating Instagram (which is owned by Facebook) reaching over 500 million users, Mark suffered a photo fail when a beady-eyed Internet person spotted the webcam and microphone on his Mac laptop covered up with tape.
Mark's 'security measures' show that even one of the most technically savvy men IN THE WORLD (who also gives great interview advice, BTW) gets worried about being spied on.
The method of taping up your webcam and microphone gained worldwide focus after Edward Snowden claimed that the Government Communications Headquarters use people's webcams to capture images of them.
And Zuckerberg isn't the only super-clever-intelligent-dude to take the makeshift measure: the Director of the FBI, James Comey, does too.
Speaking at a Q&A in April, Comey said: 'I saw something in the news, so I copied it. I put a piece of tape — I have obviously a laptop, personal laptop — I put a piece of tape over the camera. Because I saw somebody smarter than I am had a piece of tape over their camera.'
'Always copy someone smarter than you' is our new life mantra - starting right now.
Right, where sells cellotape?