A Virtual Private Network (VPN) serves as a secured tunnel over the public internet, allowing users to access organizational networks while ensuring data integrity and confidentiality. By encrypting data before transmission, VPNs protect sensitive information from potential threats and unauthorized access, thus enabling remote work and secure communications. This concept is significant in the context of cybersecurity and information technology governance, which are essential components of contemporary governance, relevant to UPSC Prelims GS Paper I.