VPN credentials are the authentication details - such as usernames, passwords, or cryptographic keys - used to securely access a Virtual Private Network (VPN). These credentials ensure that only authorized users can connect to the network, protecting sensitive data and communications from unauthorized access. If VPN credentials are compromised, attackers can gain access to private networks, potentially bypassing security measures and exposing confidential information. Proper management and protection of VPN credentials are essential for maintaining network security.