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Think of a VPN as a secure, private tunnel through a crowded, noisy city (the internet). Typically, your online journey (data transmission) would take you through busy streets (public networks), where your movements could be observed (data vulnerability). A VPN provides a private, underground passageway. While you’re in this tunnel, no one outside can see where you’re going or what you’re doing, and you emerge at your destination (web service) without anyone on the outside knowing where you started or what path you took