> ## Documentation Index > Fetch the complete documentation index at: https://docs.msu.io/llms.txt > Use this file to discover all available pages before exploring further. # Advanced Security 　  ## **1. What is Advanced Security?**  1 * Two-Factor Authentication must be enabled to access these additional security features.  * Once **Two-Factor Authentication is** enabled, you can lock Warp-Out and Transfer transactions to block outgoing transfers.  * When a feature is locked, all outgoing transfers from the wallet on the Henesys Chain are blocked, helping protect your assets from unauthorized transfers if your account is compromised.   ### **1.1. How to Use the Lock Feature**  1. To use the Lock feature under Advanced Security, Two-Factor Authentication must be enabled. First, check your Two-Factor Authentication status under Account Security.  [\[Guide\]](https://docs.msu.io/welcome-to-msu/security/two-factor-authentication)   2 2. Once Two-Factor Authentication is enabled, Advanced Security’s ‘Warp-Out Lock’ and ‘Wallet Transfer Lock’ features become available. Both are unlocked by default.  3 3. Click the ‘Lock’ button on the feature you want to lock. This activates a locked state that blocks that feature.   4 OTP verification is required to unlock a feature.  ### **1.2.  Manage Trusted Wallet Addresses**  * You can register trusted wallet addresses as exceptions that can still receive transfers while a feature is locked.  * You can register up to five trusted wallet addresses for each feature while it is locked.   * ‘Trusted Wallet Address’ entries remain available for transfers even when Wallet Transfer Lock is active.  * If your currently connected wallet address is registered under ‘Warp-Out Lock’ as a ‘Trusted Wallet Address’ and your account is compromised, an attacker could warp out your wallet’s assets to another network without any additional verification. Please proceed with caution. 
5 OTP verification is required to update and save your trusted wallet registration.  　 ***