Owners of Xiaomi, Redmi and POCO smartphones often face the need to hide personal correspondence or financial data from prying eyes. Standard screen locking is not always effective if you hand over your phone to a relative or colleague for a call. That is why the application lock feature is becoming one of the most popular tools in the MIUI system and the new HyperOS. It allows you to create an additional security barrier for selected programs.
The process of setting up security may vary depending on the operating system version and the firmware region. In some cases, the security menu is hidden or renamed, which causes confusion among users. We will analyze all the current ways, including the use of embedded system tools and third-party solutions. The built-in application protection mechanism in MIUI operates at the core level, which provides a higher level of security than conventional launchers.
Before you start setting up, it's important to understand the difference between hiding icons and setting a password. Hiding makes an application invisible on the menu, but it doesn't protect its contents when you run it directly. Password requires authorization every time you try to log in. Combining these methods yields the best results. Next, we'll look at the algorithm for actions for different use cases.
Standard procedure for activating protection in MIUI and HyperOS
The basic method of setting a password is built directly into the Xiaomi shell. To access these settings, you will need to log into the security menu. Usually, the system itself offers to configure protection when you first run certain applications, but you can also do this manually through the settings. This is the most reliable way, without requiring additional software installation.
Find an app on your desktop or in the Tools folder called Security, which is usually green with a shield symbol. Once you run, select Application Protection or Application Lock from the options available. The system will suggest creating a special password that will differ from the screen unlock password.
- 🔒 Create a reliable pattern lock or digital code from 4-6 symbolism.
- 📱 Link your Mi Account to restore access.
- 👆 Set up fingerprint unlock for quick entry.
Once you create a password, you'll see a list of all the programs you've installed. Just move the slider across from the app to the active position. Now, when you try to open WhatsApp, Telegram, or a gallery, the system will request authorization, which is a basic level of protection that most users can use.
Configure additional security parameters
Simply setting a password is not enough to be completely confidential. The lock settings menu has advanced options that allow you to flexibly manage access, for example, you can configure the content of notifications to hide on a locked screen, which will prevent information from leaking even before you enter the password.
In the lock settings section, look for “Hide contents” and activate this feature to replace the text of incoming messages with asterisks or completely hide the preview. It is also recommended to enable the option “Block when you exit”, in which case the application will require a password every time you fold it or switch to another window.
⚠️ Warning: If you forget your application protection password and don't link your Mi Account, it's almost impossible to restore access to your data.
The Guest Mode or Second Space feature is a feature that allows you to create a completely isolated environment with a separate set of applications and a password, switching between the main and guest profiles through a special password or fingerprint input on the lock screen.
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Use different fingerprints for your main profile and hidden apps, such as your right thumb opening your phone and your left thumb opening your hidden programs.
Creating a Hidden Folder and Protecting System Applications
In addition to individual applications, MIUI also has hidden applications, and in order to access them, you need to open the standard Explorer or Gallery app and swipe from the bottom up, and you will need to enter a previously set password in the window that opens.
Inside the hidden space, you can put files, photos, even entire apps, and they won't show up in the shared list, and they won't be visible when you search, and it's a great way to hide sensitive documents or personal photos from curious glances.
System applications such as Settings or Contacts can also be protected, but caution must be exercised here, blocking system services can lead to unstable interfaces, and only user content is protected.
☑️ Checking privacy settings
Comparison of data protection methods on Xiaomi
There are several layers of protection available to users, and it is important to understand their differences. The table below compares the basic techniques built into Xiaomi’s shell to help you choose the best option for your needs.
| Protection method | Level of access | Difficulty bypassing | Impact on the battery |
|---|---|---|---|
| Application lockdown | High-pitched | Medium | Low. |
| Hidden applications | Medium. | Tall. | Low. |
| Second space | Maximum | Very high. | Average. |
| Encrypted folder | High-pitched | Tall. | Low. |
As you can see from the table, Second Space provides the highest level of isolation by creating a virtual copy of a smartphone. However, this method requires more system resources. Application locking is the middle ground between convenience and security.
Using third-party launchers to hide icons is visual and doesn't protect data. If an attacker knows the path to a file through a file manager, they can access the information, so embedded MIUI is preferable.
Solution: What to do if you forget your password
It's not uncommon for users to forget their application protection password, and if you've linked a Mi Account, you can restore access through the "Forgot Password" button on the input screen, and the system will send a confirmation code or ask you to answer a check question.
If the account is not tied, there are few options left. You can try to guess the pattern lock, but after several failed attempts, the system will block the input for a certain time. Some users resort to cleaning the data of the Security application, but this will reset all the security settings.
Technical details of recovery
To avoid problems, regularly check the relevance of the associated phone number and email address in the acca-unt settings. It is also recommended to periodically update the password using complex combinations that are difficult to find.
Using third-party applications to block
If the built-in features aren't enough or they don't work properly, you can turn to third-party solutions from Google Play. There are many applications, such as AppLock or Norton App Lock, that offer similar functionality. They can be useful on older versions of Android.
However, third-party blockers have a significant disadvantage: they work on top of the main interface and can be bypassed by an experienced user through secure mode or debugging over USB. They also consume more battery life, as they constantly hang in the background.
- 📉 Can slow down the smartphone due to constant monitoring.
- 🔓 Less reliable protection than system protection.
- 📢 Often contain intrusive advertising in free versions.
Using third-party blockers makes sense only if the device has global firmware with Xiaomi cut-out services. In other cases, the regular HyperOS and MIUI tools work more stable and safer.
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The built-in application protection in MIUI is integrated deeper into the system than any third-party counterparts, making it the preferred choice for Xiaomi users.