Xiaomi smartphone owners often face the need to manage app access rights, especially when it comes to the security of the MIUI 12 operating system. A feature that allows you to install programs outside the official Google Play store or GetApps can by default create vulnerabilities in the protection of your personal device.
The MIUI shell interface has undergone significant changes in version twelfth, making it more difficult for the average user to understand the access rights process. Previously, it was enough to simply switch one switch in general settings, but now the system requires a customized approach to each installer application, a complication that was introduced by developers specifically to improve cybersecurity, but raises many questions for those who are accustomed to the old management scheme.
In this article, we will discuss in detail the algorithm of actions necessary for a complete ban on installation. APK-You will learn how to find hidden menus, what parameters are responsible for the installation permission, and how to check that the protection is indeed activated. Competent setting of these parameters will allow you to use your smartphone with the confidence that no application will be able to unnoticed install additional software.
Risks of Installing Applications from Unverified Sources
Ignoring security settings when working with APK files can have serious consequences for the owner of the device. Malware masquerading as useful utilities or modified versions of games often requires these rights for its installation. Without proper control, the system becomes vulnerable to attacks aimed at stealing personal data, bank details and passwords from social networks.
One of the main threats is the so-called “droper” – a program that itself can be harmless, but after installation, downloads and activates viruses. If your Xiaomi is allowed to install from unknown sources for browsers or messengers, any downloaded file can start a chain reaction of infection, which is why digital hygiene experts recommend keeping this functionality blocked for all applications except in cases of emergency.
⚠️ Note: Even if you download files from trusted forums, the lack of control over installation rights allows background processes to change system settings without your knowledge.
In addition, uncontrolled application installation often leads to intrusive advertising that overlaps the interface and interferes with the normal operation of the smartphone. Advertising modules can be embedded deep into the system, and they can be extremely difficult to remove without completely resetting the device.
Where to find security settings in MIUI 12
Finding the right options in the MIUI 12 shell can be confusing even for an experienced user, as the logic of the menu here is different from pure Android. The main tool for access control is the built-in Security application, which has system privileges, and it is through this that control the installation of programs, rather than through the standard settings menu, as it was in earlier versions of firmware.
To get started, you need to open the main menu and find an icon called Security, which is usually green and displays a shield. There are many important features hidden inside this application, including memory cleanup, antivirus and permission management. We're interested in the section related to application rights management, which in different localizations may be called differently, but most often is labeled as Permission Management.
Inside the permissions menu, look for a item that directly indicates the installation of unknown applications. In MIUI 12, this section is often hidden in the submenu or requires scrolling through the list to the end. It is important not to confuse it with the general "Unknown Sources" setting, which in new versions of Android has been abolished in favor of individual control for each installer application.
Why can the menu be different?
It is worth noting that some system applications may have priority access, and their settings can be hidden by default. If you do not see the desired item, try searching inside the Security app or entering the keyword “install” in the search for all smartphone settings, this will help you to quickly localize the desired section without wandering through the menu.
Step-by-step instruction to disable the function
The process of disabling the ability to install third-party applications requires several steps to be performed sequentially. First, you need to open the Security application and go to the permissions management section. Next, you should find the Install Unknown Applications (or similar in meaning), which will open a list of all programs that are authorized to start the installation process.
Once you open the list, you will see all the apps that have ever requested or could request installation. APK-This includes browsers (Chrome, Mi Browser), file managers, messengers (Telegram, WhatsApp) and cloud storage, and your task is to go through this list consistently and for each application to switch the switch toggle to the position "Switched off.
☑️ Checklist of rights disabling
Special attention should be paid to the system component Packages Installer. Although it is part of the system, its rights can also be limited, which will prevent automatic installation of updates or modifications from unverified sources. However, it is worth remembering that completely disabling the system installer can make it difficult to update some legitimate applications if they do not use Google Play Services.
Once you have disabled all the switches, it is recommended to restart the device so that the changes take effect permanently. APK-File: The system must issue a warning that installation from this source is prohibited and prompt you to go to the settings to change the settings.
Individual setting of rights for browsers and managers
The most common vector of penetration of unwanted software is web browsers and file managers, through which users most often download files from the Internet, so control over these applications should be as strict as possible. In MIUI 12, each application has its own independent switch, which allows you to flexibly configure security policy.
For example, you can only allow the installation of applications for one particular file manager you trust and prohibit this action for all browsers. To do this, in the Install Unknown Apps list, you need to find your browser (such as Chrome or Mi Browser) and make sure that the switch is in an inactive state. APK-The file through the browser system will issue a system notification of blocking.
If you still need to install the application from the outside, the system will offer a temporary resolution. APK-The file will appear pop-up with a warning about the risks and the button "Settings". By clicking on it, you will be taken to the menu of a particular application, where you can temporarily activate the switch, install the program and immediately deaktiviroovat it back.
⚠️ Warning: Never leave permanent access to the installation APK-files for applications that are used to view questionable content or download files from torrent trackers.
This approach of “minimum privileges” is the gold standard of security: you give the application the right only when necessary, not on a permanent basis, and this minimizes the risk that a vulnerability in the browser will be used to quietly install malware.
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Use guest mode or Second Space to test suspicious apps to isolate them from your main data and accounts.
Comparison of protection levels in different versions of MIUI
Understanding the evolution of Xiaomi’s security system helps you better navigate your settings. If you compare MIUI 12 to earlier versions, you can see a significant difference in how you manage access rights. The table below compares the key aspects of security and application installation management.
| Function/Version | MIUI 10-11 | MIUI 12 | MIUI 13-14 |
|---|---|---|---|
| Global switch | Got one for all. | No (individually) | No (individually) |
| Control of annexes | Basic | Expanded | Maximum |
| Guard Warning | Basic | Enhanced. | Real-time protection |
| Ad-blocker | Separate annex | Built into the system | Integrated deeply |
As you can see from the table, MIUI 12 has abandoned the global switch in favor of individual control, which means you can no longer disable all installations in one move, but you get a more accurate tool to set up. This detail allows you to create complex security scenarios, for example, allowing installation only to enterprise applications through the Internet. MDM-profiles.
Newer versions, such as MIUI 13 and 14, develop this concept by adding Guard features that automatically scan the system. APK-Files before installation, even if the source is allowed, but the basic principle of individual permission for each installer application has remained unchanged since the twelfth version of the shell.
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The abandonment of the global switch in MIUI 12 made life difficult for users, but significantly improved security, requiring explicit confirmation for each installation source.