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Bypassing geographical restrictions or censorship to access content not available in a specific region. 2. Technical Architecture and Protocols

Encrypting all internet traffic to prevent eavesdropping or data theft, especially on public Wi-Fi. VPNs function at various layers of the OSI

VPNs function at various layers of the OSI model using specific tunneling protocols that vary in speed and security: encrypted "tunnel" over a public network

Hiding a user's IP address and location from websites and trackers. such as the internet

Originally developed for corporate environments to allow remote workers to access local networks securely, VPNs are now widely used by individuals. Their primary functions include:

The following sections provide a structured overview suitable for a research or capstone paper on the topic. 1. Introduction and Core Purpose

A Virtual Private Network (VPN) is a technology that creates a secure, encrypted "tunnel" over a public network, such as the internet, to protect data and ensure user privacy.