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"VPN" stands for Virtual Private Network, which is a software or technology that enables secure internet access over public networks. It typically encrypts your connection to protect your data, often over the internet or through a private network. VPNs are commonly used for online services like streaming, gaming, and e-commerce. However, it's important to note that VPNs can also be malware if not used properly, so always ensure you have the appropriate security measures in place.