I have been looking into vpn (virtual private network). And I wanted to know more about the theory, how does it work really:

  • what does it do with the packages?
  • why is it secure? (or why can it be unsecure)
  • how does it work on the internet?
  • how can it simulate you're coming from another country?

It feels so mainstream nowadays (sole available directly from the browser), that I wanted to understand better what happens when you use one.

  • $\begingroup$ I'm not 100% sure this is on-topic here, but an interesting question nonetheless. $\endgroup$ – Yuval Filmus Feb 18 '18 at 7:33

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