Owners of Xiaomi, Redmi and Poco smartphones often wonder how to reliably protect personal correspondence from prying eyes. The standard functionality of the WhatsApp messenger allows you to set a pin code to enter the Favorites section, but this does not block access to the application itself. For full protection on devices with shells MIUI and HyperOS, there are built-in system tools that work more efficiently than third-party applications.
Using system security settings ensures that even when you try to reset or remove third-party software, access to your data will remain closed. Unlike the global versions of Android, Xiaomi firmware offers a native feature called Application Protection, which does not require additional software installation.
In this article, we will discuss in detail how to activate your WhatsApp password, set up biometric unlocking, and use Second Space mode to create a fully isolated copy of the messenger. You will learn about the nuances of how these functions work in different versions of the shell and how to avoid common configuration errors.
Built-in application protection function in MIUI and HyperOS
The most reliable and energy-efficient way to shut down the messenger is to use the standard App Protection tool, which is built deep into the shell’s security and works independently of the WhatsApp app itself. When you try to open a secure app, the system will require proof of identity before showing the contents of the chats.
To activate the protection, you need to go to the device settings menu. The path may vary slightly depending on the version of the operating system, but the logic remains the same. You will need access to your Mi Account account to initially activate some security features, which is standard procedure for Xiaomi devices.
Once the function is enabled, the system will suggest selecting the unlock method. You can use a digital password, a pattern lock or biometric data if they are configured on the device. It is important to understand that the unlock password for applications may differ from the password for the phone lock screen, which adds an additional layer of security.
- 🔒 Open Settings and find the Application section.
- 📱 Select Application Protection in the Options List.
- 🔑 Activate the switch and set a unique password or use a fingerprint.
- ✅ Find WhatsApp and turn on protection for it.
It’s worth noting that once you turn on this feature, a password request box will appear every time you run the messenger, which may seem inconvenient, but this algorithm of actions ensures that no one will get access to correspondence if you leave the unlocked phone on the table.
Step-by-step: set a password on WhatsApp
The process of installing the security takes no more than a minute, but it requires careful consideration when choosing the type of lock. If you have not previously used the security features of MIUI, the system may suggest creating a special privacy password.
First, go to the main settings menu of your smartphone. Depending on the firmware version, look for Application Protection either within the App category or under Security. Newer versions of HyperOS often put this tool in a separate privacy settings menu.
Once you log in, you will be asked to turn on the function. Press the appropriate button. The system will ask you to come up with a password of 4-6 digits or a more complex combination. It is recommended not to use simple combinations like "1234" or "0000" as they are easy to match.
☑️ Checking before setting a password
Once you have a password, you'll see a list of all the installed programs, find WhatsApp and put the slider in the active position, and from now on, you'll only be able to log in to the messenger after you've successfully logged in. If you're using multiple WhatsApp accounts through cloning, don't forget to protect the second copy of the app.
Set up biometric unlocking for messenger
Password entry can be tedious every time, especially if you use the messenger a lot. The MIUI and HyperOS shells allow you to use biometrics — a fingerprint or facial recognition — to quickly access secure applications. This is not only convenient, but also safe, because biometrics are stored in a secure processor module.
To activate this option, you need to have your phone already logged biometrics in the basic security settings. If you haven't added a fingerprint, do it through the Passwords and Security menu. Without this step, the system won't suggest using biometrics to protect the apps.
In the Application Protection menu, find the unlock method settings, which are usually available through a gear or an optional menu in the upper right corner, and you can choose the priority method: if you select a fingerprint, the system will ask for it first, the fallback will come up with a digital password.
⚠️ Note: Face recognition on some budget Xiaomi models is done with a front camera and may be less reliable than a fingerprint.
It is also worth considering that after restarting the device, the system will always require the entry of the main password or PIN-This is a standard Android security measure that you can't get around, and only after you manually enter your password, will you be able to unlock your fingerprint.
Using the Second Space to Hide WhatsApp
For users who want maximum privacy, Xiaomi offers a Second Space feature, which is not just a password for an app, but a completely isolated environment inside a smartphone, which will have a separate desktop, its apps and its accounts that are not associated with the main system.
You can install WhatsApp in the Second Space and secure your entry with a separate fingerprint or password. If you hold a particular finger to the scanner, the phone will unlock right into the Second Space, bypassing the main desktop. To an outsider, the phone will look normal, without any hint of hidden data.
To create Second Space, go to Settings → Additional → Second Space. Click Enable. The system will create a virtual copy of the interface, and you can transfer the WhatsApp app to that or download it again by linking it to another phone number.
What is the difference between Application Protection and Second Space?
The advantage of this method is that even if someone gets access to your main phone, they won't see the messenger icon in the second space unless they know how to switch, and you can switch between spaces through a notification curtain or a special fingerprint on a locked screen.
Hiding the app icon through hidden apps
Another layer of privacy in Xiaomi devices is the ability to completely hide the app icon from the desktop, called Hidden Apps, and it works in conjunction with the security feature, and when the app is hidden, it can't be found through a search or menu until you type in a special code or swipe at a specific location on the screen.
To set up this feature, go to Settings → Apps → Hidden Apps. Turn on the feature and select WhatsApp from the list. After that, the icon will disappear from the home screen and from the menu of all programs.
To open a hidden app, you need to open the standard Security app (green zipper icon), scroll to the bottom and click on Hidden Apps, or use a predefined code in the search bar, for example, you can configure that when you type in the search engine the number “123” opens the hidden WhatsApp.
| Protection method | Level of access | Difficulty bypassing | Convenience |
|---|---|---|---|
| Application protection | Requires a password at launch | Medium. | High. |
| Second space | Complete system isolation | High-pitched | Average. |
| Hidden applications | The icon is invisible. | Medium (see in settings) | Low. |
| Combined | Hiding + Password | Maximum | Low. |
By combining these methods, you can achieve a high degree of privacy, like putting WhatsApp in the Second Space, and the Second Space itself to protect with a password and hide its icon, which makes access to correspondence almost impossible for the casual user.
Solving access problems and resetting password
What if you forget your application protection password? It's a common situation, and Xiaomi has a recovery mechanism, but it requires pre-preparedness. If you've linked your Mi Account to a security feature, you can reset your password through it.
If you have several unsuccessful attempts to enter a password, the screen will display a link “Forgot your password?” By clicking on it, the system will suggest sending a confirmation code to the associated phone number or email, or login through your Mi Account. Without binding an account, resetting your password without losing data will be extremely difficult.
⚠️ Note: If you have not linked your account and forgotten your password, the only way to access the app may be to completely reset your phone settings or delete the WhatsApp app, which will result in the loss of your correspondence history if you have not made a backup copy.
To prevent such situations, regularly check the relevance of the data in your Mi Account and make sure that the recovery function is active, you can also write a complex password to a secure place, such as a paper notebook or password manager, which you have access to.
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Back up WhatsApp chats to Google Drive before experimenting with passwords, which will save your correspondence if you have to remove the reset application.