Example Concept: Two-factor authentication for remote access typically involves combining something the user knows (e.g., a password) with something the user has (e.g., a mobile device for OTPs or a hardware token). This can be implemented using solutions like Google Authenticator, Duo Security, or Microsoft Authenticator. The process involves configuring the remote access server (e.g., VPN, RDP gateway) to require 2FA during login attempts, ensuring that users are prompted for a second factor after entering their primary credentials.