Suggest an editImprove this articleRefine the answer for “What is zero trust?”. Your changes go to moderation before they’re published.Approval requiredContentWhat you’re changing🇺🇸EN🇺🇦UAPreviewTitle (EN)Short answer (EN)**Zero Trust** is a security model that works on the principle of "never trust by default, always verify." **Key point:** even if a user or device is already inside the network, it still cannot be automatically trusted.Shown above the full answer for quick recall.Answer (EN)Image**Zero Trust** is a security model that works on the principle: **"Never trust by default - always verify."** In simple terms: *even if a user or device is already inside the network, it still cannot be automatically trusted.* --- ## The essence of Zero Trust In the classic security model, it was assumed that: - inside the network - **you can trust**; - outside - **you must defend**. **Zero Trust breaks this approach** and says: - there is no trust **either inside** or **outside**; - every access is **verified again**. --- ## Core principles of Zero Trust ### 1. Never trust automatically - It does not matter where the request comes from: the internet or the internal network - Any access must be verified *An internal network is not the same as a secure network* --- ### 2. Always verify Before granting access, the following is checked: - the user (who are you?); - the device (which computer?); - the context (where from, when, why). What is often used: - multi-factor authentication (MFA), - device verification, - session control. --- ### 3. Least privilege A user gets: - **only the access** they need; - **only for the time** they need it. If access is not needed, it is not granted. --- ### 4. Continuous control - access can be revoked at any moment; - behavior is analyzed continuously. For example: if behavior becomes suspicious, the session is terminated. --- ## Why Zero Trust emerged Because: - the cloud and remote work appeared; - users work from home; - devices are often insecure; - a breach of one node gives access to the entire network. **Zero Trust reduces the damage even in the event of a breach.** --- ## A simple example Without Zero Trust: > "You are inside the network - go wherever you want" With Zero Trust: > "Prove who you are, from which device, and why - only then will you get access" --- ## Where Zero Trust is applied - corporate networks; - cloud services; - next-generation VPN; - access to critical systems.For the reviewerNote to the moderator (optional)Visible only to the moderator. Helps review go faster.