In many countries applying VPN is not banned but in those having a severe legal system (as in Iran, China, North Korea) it is forbidden. Lately this year, it was reported that a young man from one the Chinese provinces was sentenced for selling a VPN on his website. Getting a VPN for Iran is also a risky affair. If people use those VPN services which are known to the government and they are ‘’approved’’, their personal data is tracked by the authorities.The authorities of such states are constantly trying to control online chatting or internet activities, due to this chatting with Facebook friends online in these countries is not possible. But when you are travelling to one of the listed states, subscribe for a VPN service in your native place before passing a frontier. That would be more reliable in case you must be in touch with your relatives and friends by using Facebook.