A Virtual Private Network (VPN) is a useful tool that encrypts data before it passes across the public Internet and then decrypts it when it reaches its destination. Rather like shutters on the windows of a house, it shields what goes on inside even though the outside can be seen by everyone in the street. The process, often referred to as tunneling, is particularly useful for businesses whose workers have to use the Internet in public places like coffee shops or airports. It is also helpful for those who want to keep confidential customer information or intellectual property safe from the prying eyes of hackers and spies. In 2017, the U.S. Trump administration overturned regulations preventing ISPs from making money from users’ browser data. At the same time in the UK, the Investigatory Powers Act served to increased government surveillance of Internet activity in response to a heightened threat of terrorism. Both led to a surge in interest in VPNs. A VPN is an established technology that has traditionally been seen as the province of technical specialists. Perhaps because of this, and in spite of VPN services becoming easier to deploy, a number of enduring myths persist.
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from Four Common Myths about VPNs
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