# Security concepts Defguard's **fundamental secure processes**: * Secure remote user enrollment (self-service) * User self-service to manage their own data, change passwords, add/remove VPN devices, connect securely to networks * For administrators to easily setup, manage and monitor multiple VPN networks (with access control) to provide a secure connection to applications that should not be visible on the internet * Deploy an Identity Provider to have one place to manage all users * That Identity Provider should provide SSO functionality to enable users to log in to all systems with one login/password * Have 2FA/MFA functionality to harden security * Setup YubiKey Hardware keys to enable the best 2FA security, secure SSH login with private keys on a secure hardware * Integrate all your systems with API, and Webhooks (to access Defguard functionalities or users' data) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.defguard.net/in-depth/architecture/security-concepts.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.