If you are the owner of a smartphone Xiaomi, Redmi or POCOyou have probably encountered a mysterious application "MIUI security components"** in the list of installed apps. It does not have a shortcut on the desktop, is not launched manually, but is regularly updated via Google Play or system updates. What is this app? Why does it take up space in memory? And most importantly, can it be removed without consequences for the phone?

In this article we will analyze in detail how MIUI security components they affect the operation of your device, what functions they perform (including virus protection, permission control and data encryption), and also answer popular questions: why the application cannot be disabled standard ways of how to check its relevance and what to do if it starts to “glitch”. We will separately touch on the myths that this is “spyware” or “useless bloatware” - with technical arguments and examples from real cases.

Spoiler: removing security components MIUI is strictly not recommended - this can lead to k loss of access to banking applications, vulnerabilities in the system and even blocking of some smartphone functions. But there are legal ways to optimize their work, which we will also talk about.

What are MIUI security components and why you need them?

MIUI security components (English MIUI Security Components) - this is a system an application that is responsible for basic protection of the operating system Android on devices Xiaomi. It is built into the firmware and tightly integrated with the kernel MIUI, so it cannot be completely removed without obtaining root access.

The main tasks of this software:

  • 🛡️ Scanning for viruses and malware - checks installed applications and files for threats in real time.
  • 🔒 Permission control — controls app access to contacts, camera, geolocation and other sensitive data.
  • 🔄 Updating security signatures — downloads current threat databases via Google Play or servers Xiaomi.
  • 📱 Protection of system processes —prevents unauthorized changes in operation Android (for example, from root viruses or Trojans).

It is important to understand that this is not a separate antivirus (like Avast or Kasperskya built-in security modulethat works at the system level. For example, when you install an application from APKthe components MIUI first check it for security, even before launching.

📊 Have you ever tried to remove security components MIUI?
Yes, but it didn’t work
No, I’m afraid to break the phone
I didn’t know that this could be done
Already uninstalled and ran into problems

How do MIUI security components interact with Android?

Unlike third-party antiviruses, which work “on top” of the system, the components MIUI are deeply integrated into the architecture Android. They interact with:

  1. Kernel MIUI —check the integrity of system files when the device boots.
  2. Google Play Protect —supplement its threat databases (but do not duplicate functionality).
  3. Permission manager —block suspicious requests from applications (for example, if a game suddenly wants to send an SMS).
  4. MIUI Optimizer —optimize resource consumption in the background.

Practical example: if you download a malicious APKfile, you will see a notification "Security threat detected" even at the installation attempt stage. This works precisely thanks to the components MIUI, and not Google Play Protection (which works later).

Function How it works Example
Scanning applications Checks hashes and signatures before installation Blocking fake ones WhatsApp with a virus
Network control activity Monitors suspicious connections in the background Warning about data transfer to an unknown server
Protection against root viruses Blocks attempts to obtain root access without the user's knowledge Stopping an attack through a vulnerability DirtyCow

Interesting fact: on devices Xiaomi for the European market (MIUI Global) security components can behave more aggressively than on Chinese versions of the firmware. This is due to requirements GDPR and local data protection standards.

Is it possible to remove MIUI security components?

Technically remove this application you can, but only with root access or through ADB (Android Debug Bridge). However, the consequences can be critical:

⚠️ Attention! Removing security components MIUI will lead to:
  • 🚨 Loss of certification Google Play Protect —many banking applications (for example, SberBank Online or Tinkoff) will stop working, citing an “unsafe device.”
  • 🔓 Opening vulnerabilities —the phone will become an easy target for viruses, spyware and phishing.
  • 📵 Failures MIUI —notifications may disappear, system applications may stop updating, or a “bootloop” may even occur. reboot).

If you still want to get rid of the application, there is a safe alternative:

Clear cache in Settings → Applications → MIUI security components → Memory

Disable auto updates in Google Play (but not recommended)

Hide notifications in application settings

Use Debloater tools (for example, Universal Android Debloater) to disable background activity-->

On some firmware (for example, MIUI 14 for Redmi Note 12) you can disable individual functions of components via Settings → Privacy → Special permissions. But complete deletion is always a risk!

What happens if you interrupt the update of security components?

If you interrupt the process while updating components via Google Play or a system update (for example, turn off the phone or turn off the Internet), this may lead to a malfunction of the security module. At best, you will receive an error notification, at worst, the phone will start to lag or reboot. Only resetting the settings or flashing the firmware will help restore functionality.

How to update MIUI security components manually?

Updates for security components come in two ways:

  1. Through Google Play (if you have a global version MIUI).
  2. Through system updates (in the section Settings → About phone → System update).

To check the latest version:

  1. Open Google Play.
  2. Enter in search «MIUI Security Components»**.
  3. If there is a button "Update"**, click it.
  4. If there is no button, your version is current.

On some devices (for example, POCO F5 or Xiaomi 13T) updates arrive automatically and are not displayed in Google Play. In this case, check the version via Settings → Applications → MIUI security components → Version.

💡

If the update is stuck, restart your phone and check your Internet connection. Sometimes clearing the cache helps. Google Play Store (in application settings).

Myths and truths about MIUI security components

There are a lot of rumors about this application on the Internet. Let's look at the most popular ones:

❌ Myth 1: “This is spyware that collects my data.”

✅ True: Security components MIUI do interact with servers Xiaomi to update threat databases, but they do not transmit personal information (photos, messages, geolocation). This is confirmed by independent studies, for example, from XDA Developers. Moreover, there are strict restrictions on European firmware GDPR.

❌ Myth 2: “It slows down the phone and eats up the battery”

✅ True: In normal mode, security components do not consume more 1-3% charge per day (data from Redmi Note 11 to MIUI 13). If you notice abnormal consumption, most likely the problem lies elsewhere - for example, in a virus that is trying to bypass the protection.

❌ Myth 3: “You can replace it with a third-party antivirus”

✅ Truth: Third-party antiviruses (such as Avast or 360 Security) do not replace, and supplement components MIUI. They work at different levels: built-in modules protect the system core, and third-party ones scan user files.

💡

MIUI security components are not “extra garbage”, but a critical element of protection. Their removal can lead to loss of warranty and security problems.

What to do if the MIUI security components are “buggy”?

Sometimes users encounter errors like:

  • 🔄 "MIUI security components have stopped"** (notification appears constantly).
  • 📥 "Failed to update database"**.
  • 🚫 "The threat is not detected", but applications are not installed.

Here is the algorithm for troubleshooting the problems:

  1. Clear the cache: 
    Settings → Applications → MIUI security components → Memory → Clear cache
  2. Restart the phone - sometimes a simple reboot helps.
  3. Update the firmware: 
    Settings → About phone → System update
  4. Reset security settings (extreme case): 
    Settings → Privacy → Reset security settings
⚠️ Attention! If after resetting the security settings, the phone requires a password Mi Account, and you don’t remember it - restore access through the official website Xiaomi. Otherwise, you risk losing data!

If errors are repeated, check your phone for viruses using Malwarebytes or Dr.WebSometimes there are “glitches” of security components. are caused precisely by malware that tries to bypass them.

FAQ: Frequently asked questions about MIUI security components

🔍 Why can't MIUI security components be disabled?

This is a system application with privileges android:sharedUserId="android.uid.system", which means it is tightly integrated with kernel MIUI. Disabling it will break the security chain and may cause the phone to malfunction.

📱 Is it possible to transfer security components to an SD card?

No. Like any system software, it must be in the internal memory. Transfer to SD will lead to startup errors.

🔄 How often are threat databases updated?

Usually once every 1-2 weeks, but with critical vulnerabilities (for example, like a virus FluBot), updates may come more often. Check the relevance of Google Play.

🛡️ Do MIUI components replace antivirus?

Partially. They protect the system from root viruses and changes in the firmware, but do not scan user files (photos, documents) as thoroughly as specialized antiviruses.

📵 What happens if you remove security components via ADB?

The phone will be left without protection from most threats, and some functions MIUI (for example, Second Space or App Lock) There is also a high risk of a “brick” (turning into a “brick”) during the next system operation. update.