--- title: "Locking Simulation Models" slug: "locking-simulation-models" updated: 2022-06-28T18:33:25Z published: 2022-06-28T18:33:25Z canonical: "userguide.dataclassroom.com/locking-simulation-models" --- > ## Documentation Index > Fetch the complete documentation index at: https://userguide.dataclassroom.com/llms.txt > Use this file to discover all available pages before exploring further. # Locking Simulation Models You can prevent anyone "opening the lid" of a Model and seeing how it is configured, by **locking it**. Then they'll have to run simulations on the model to try and work out what is going on inside. Just like a real-world experiment, in fact! Who can open a locked model?Once you lock a model, only **you**, or someone **with the password**, can open it. This persists, even if the model is copied by someone else. The contents are still "yours". ### How to lock / unlock To lock a model, just click on the **lock icon** bottom right: ![](https://cdn.document360.io/62f8f41e-e041-42c4-b9bc-8ae1eb45d064/Images/Documentation/image-1656400833722.png) You will be asked for a password. You can choose a simple or complex password, there are no rules. ### Recovering the password The **original owner** of the model contents can always click the lock icon and see the password.