A VPN (Virtual Private Network) is a service that encrypts your internet connection, making your online activities private and secure. When you use a VPN, your data travels through an encrypted tunnel to a remote server, masking your real IP address and location. This helps protect your personal information from hackers, your internet service provider, and other third parties. VPNs are commonly used to enhance privacy, access region-restricted content, and safely use public Wi-Fi networks. While VPNs improve security and anonymity online, they do not make you completely invisible or immune to all cyber threats.