A Virtual Private Network (VPN) is a digital tool that enhances online security[3] et vie privée[4]. This tool works by creating a secure, encrypted connection between a user’s device and the Internet[5], shielding their online actions from prying eyes. VPNs come in various types and classifications, including remote access, site-to-site, and extranet-based configurations, catering to different user needs and network setups. They employ security mechanisms like encryption and authentication methods such as passwords and cryptographic techniques to ensure data confidentiality and integrity. VPNs are beneficial for businesses and individual users alike, offering cost-effective solutions for secure remote access, bypassing geo-blocks, and maintaining internet privacy[1]. They are particularly valuable in today’s digital landscape where data security[2] and privacy are paramount. However, users should be aware of potential risks such as DNS leaks and vulnerabilities in protocols, especially when using free VPNs.
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A virtual private network (VPN) is a mechanism for creating a secure connection between a computing device et un réseau informatique, or between two networks, using an insecure communication medium such as the public Internet.
A VPN can extend access to a réseau privé (one that disallows or restricts public access) to users who do not have direct access to it, such as an office network allowing secure access from off-site over the Internet.
The benefits of a VPN include security, reduced costs for dedicated communication lines, and greater flexibility for remote workers.
A VPN is created by establishing a virtual point-to-point connection through the use of tunneling protocols over existing networks. A VPN available from the public Internet can provide some of the benefits[example needed] of a private wide area network (WAN).