Does anyone have a good understanding of Facebook and computers?

[Jade]

Someone is threatening me of Facebook (for something i've done). He said he's backed up all my friends on facebook (not added them, saved them or something) and he'll tell them all. Can you please tell me if that's even possible. Btw he's really advanced with technology so nothing really too hard for him.

[Alexandra]

I would suggest blocking that person or terminating your account for a little while and then like after a week or two you can start it again. But how does he know something you have done and your friends don't? Did he actually tell you what you've done?

And yes he can message your friends without being their friend. Why do you think he is really advanced with technology?