They say you can spy on Facebook. But I don’t understand, is it like a very secure social network or not? Or is there a way to hack it?

My dear boy, if you knew the capabilities of the people who live on the dark web, then you would have no doubt that any program can be hacked. Such people have developed facebook spy tools that make it possible to confidentially receive activity data from any page in this social network and even others too. Believe me, it's true.