Xiaomi 365 Locker: Why it works, how it works, and whether it’s worth using it

Xiaomi 365 Locker is one of those system apps that raises more questions than answers. -- Xiaomi, Redmi and Google users POCO It's often found on the installed software list, but not everyone understands its purpose, some people think it's a virus, others consider it a useful tool for data protection. In this article, we will understand what 365 Locker is, how it works, what functions it performs and whether it should be left on a smartphone.

The application is closely integrated into the firmware MIUI It's responsible for encrypting personal data, managing file access, and protecting against unauthorized access, but its behavior is not always transparent: it can run on its own, consume battery life, and even block access to some folders. If you notice 365 Locker in the process list or get a notification about its activity, this is not a reason to panic, but a reason to understand the details.

It is important to note that this is not a virus, but a legitimate component. MIUI, Although its name and behavior are sometimes suspicious, in some regions (e.g. China), the app has advanced cloud storage and synchronization features, but its capabilities are limited in global firmware versions. Next, we will take a detailed look at all aspects of the Xiaomi 365 Locker – from the basic features to how to disable it.

What is Xiaomi 365 Locker and why is it needed?

Xiaomi 365 Locker (sometimes referred to as com.miui.privacy or com.miui.securitycenter.privacy) is a system application responsible for protecting confidential data on devices under control. MIUI. Its main objectives:

• 🔒 Encrypting personal files: Photos, videos, documents, and other data can be protected with a password or fingerprint.
• 📁 Folder access control: Restricting the read/write rights of applications to certain directories (e.g, DCIM or downloads).
• 🔄 Synchronization with the cloud: in Chinese versions MIUI Integrated with Mi Cloud to back up protected data.
• 🛡️ Malware protection: blocking suspicious activity of applications (for example, attempts to access contacts or SMS).

It’s essentially the equivalent of Google’s Safe Folder or Samsung’s Secure Folder, but with enhanced capabilities for the Xiaomi ecosystem.However, unlike its competitors, 365 Locker doesn’t always have a separate interface — its features can be spread across different sections. MIUI, For example, in the settings → Confidentiality or Settings → Passwords and security.

In global firmware, the application often runs in the background without requiring active action from the user. MIUI (China, for example. ROM) It may request additional permissions and offer advanced encryption settings, which are related to local data retention laws that require manufacturers to provide a high degree of protection for user information.

⚠️ Note: If you see 365 Locker in the list of running processes, but did not activate it yourself, it is normal. the system can automatically encrypt some files (for example, screenshots with bank data) to protect against leaks.

How 365 Locker Works: Data Protection Mechanisms

The application uses multiple layers of protection that work independently of each other.

1. Local file encryption: data is stored encrypted on the device, PIN-code or biometrics. Encryption is done according to a standard AES-256 — The same as banks and government agencies.
2. Folder isolation: Secure files are placed in virtual storage that is not available for other applications, and even if an attacker gains physical access to the phone, they will not be able to retrieve data without unlocking it.
3. Permissions Control: 365 Locker can block applications from accessing contacts, SMS geolocations, unless expressly authorized by the user.
4. Cloud synchronization (only in Chinese firmware): Secure data can be reserved in Mi Cloud, but it is stored in encrypted form and is not available even to Xiaomi employees.

The 365 Locker is integrated at the core level. MIUI. This means that its functions cannot be completely disabled without root rights, but you can limit activity. For example, if you do not use file encryption, the application will consume minimal resources, only monitoring permissions.

It is important to understand the difference between 365 Locker and the standard Safe Folder. MIUI:

In Chinese versions MIUI (For example, the Redmi Note 12 Pro+ 5G) 365 Locker can automatically encrypt screenshots of banking apps or messaging apps if they contain keywords like “password” or “confirmation code.

How to Enable and Configure Xiaomi 365 Locker

If you want to manually activate 365 Locker, follow this instruction. MIUI The interface may be different or hidden.

Step 1. Verification of the availability of the application

Open the Settings. → Annexes → App management and find 365 Locker (or com.miui.privacy).If it's not listed, your firmware doesn't support advanced encryption features.

Step 2: Activate File Protection

1. Go to Settings. → Confidentiality → Data protection (or passwords and security) → Confidentiality).
2. Select Secure folders or File Encryption.
3. Set a password or use biometrics (fingerprint/face).
4. Add files or folders that need to be protected by clicking Add.

Step 3: Set up permission control

To limit the access of applications to your data:

1. Open Settings → Privacy → Application permissions.
2. Select an app from a list (such as WhatsApp or Facebook).
3. Turn off permissions that seem redundant (such as access to contacts or geolocation).

If your firmware does not have an explicit 365 Locker, but you want to use encryption, use an alternative method:

1. Set a screen lock password (PIN or pattern lock).


2. Go to Settings → Passwords and Security → Phone Encryption.




3. Activate the option to Encrypt the phone (the process will take 30-60 minutes).

Charge your phone at least 50%

Connect to a stable Wi-Fi

Backup of important files

Remember the screen lock password-->

How to remove Xiaomi 365 Locker and how to do it

Uninstall 365 Locker with standard tools is not possible – it is a system application integrated into the system. MIUI. However, there are several ways to limit its activity or deactivate it:

Method 1. Disconnection through settings

1. Go to Settings → Applications → Application Management.
2. Find 365 Locker (or com.miui.privacy).
3. Click Disable (if the button is active) or Stop.
4. Reset the cache and application data (Storage option) → Clear the data).

Method 2: Removal by means of ADB (rootless)

If the shutdown does not help, you can remove the application through ADB:

adb shell pm uninstall --user 0 com.miui.privacy


adb shell pm uninstall --user 0 com.miui.securitycenter.privacy

After completing the commands, restart the phone. MIUI, safety-related.

Method 3: Transition to custom firmware

You can get rid of 365 Locker completely only by installing alternative firmware, such as LineageOS or Pixel Experience. However, this requires unlocking the bootloader and can deprive you of warranty.

⚠️ Warning: Removing system applications without understanding the consequences may result in loss of functionality MIUI, For example, you can't use a fingerprint or Face Unlock.

Xiaomi 365 Locker Problems and Their Solutions

Despite the useful features, 365 Locker sometimes causes crashes. Let’s consider the typical problems and ways to fix them:

Problem 1: Persistent notifications of application activity

If you see messages like “365 Locker is in the background” but don’t use encryption:

• 📵 Turn off notifications: Settings → Annexes → 365 Locker → Notifications → Shut down.
• 🔄 Clear the cache: Settings → Annexes → 365 Locker → Warehouse → Clear the cache.
• 🔒 Set a screen lock password – sometimes it stops background activity.

Problem 2: Access to files is blocked

If you have forgotten the password from the protected folder:

• 🔑 Try resetting your password through Settings → Passwords and security → Password reset (Mi Account will be required).
• 📱 If the reset does not work, reset your phone to factory settings (data in the protected folder will be lost!).
• 💻 Use the Mi Unlock Tool (only for unlocked downloaders).

Problem 3: High battery consumption

If the 365 Locker consumes more than 5% of the charge:

• 🔋 Check if file encryption is running in the background (open Settings). → Battery → Battery utilization).
• 🛠️ Turn off automatic sync with Mi Cloud (if available).
• 📲 Set background activity limit: Settings → Annexes → 365 Locker → Battery → Limit background activity.

In the firmware MIUI 14 and later 365 Locker may conflict with Google Play Protect, causing false positives to "malware." To fix this, add the app to the antivirus exceptions.

💡

After the update MIUI 365 Locker has stopped working, try resetting your privacy settings: Settings → Confidentiality → Reset. It'll bring the settings back to factory without losing data.

Is it safe to use the Xiaomi 365 Locker?

There is no clear answer, depending on your needs and your level of trust in Xiaomi, and consider the pros and cons:

Pros:

• 🔐 Strong encryption: the standard is used AES-256, hard-to-crack.
• 📱 Integration with MIUI: No need to install third-party apps like KeepSafe or Vaulty.
• 🌐 Leakage Protection: Blocks access to files even when physically accessing your phone.
• 🆓 Free: Unlike many other products, it does not require a subscription.

Cons:

• 🕵️ Closed source: It is impossible to verify if the application has backdoors (although there is no official confirmation of data leaks through 365 Locker).
• 📡 Metadata Collection: Chinese firmware can transmit activity information to Mi Cloud (but not the contents of files).
• 🔋 Resource consumption: in rare cases causes lags or overheating.
• 🔒 Recovery Difficulty: If you lose your password, your data can be lost forever.

For most users, 365 Locker is secure, but if you store critical information on your phone (like business documents), it’s best to use open source alternatives like Cryptomator or VeraCrypt.

Important: MIUI European region (EEA ROM) 365 Locker features restricted due to privacy laws (GDPR). This means that your data is not transferred to Xiaomi servers without explicit consent.

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If you don't use file encryption, 365 Locker doesn't pose a security threat, but its primary purpose is to passively monitor permissions that don't affect performance.

Xiaomi 365 Locker alternatives for file encryption

If you don’t like 365 Locker, consider these alternatives:

If you only need to hide files from prying eyes (such as photos), a standard Safe Folder is enough. MIUI:

1. Open the Gallery or the Files.
2. Select the files you need and click More → Move to Safe Folder.
3. Set a password or use biometrics.

For enterprise users or those who work with sensitive data, it is better to choose Cryptomator or VeraCrypt. These tools allow you to create encrypted containers that can be stored on both the phone and in the cloud (for example, Google Drive or Dropbox).

FAQ: Frequent questions about Xiaomi 365 Locker