Xiaomi’s Personal Security: A Complete Guide to Protecting Your Smartphone

When it comes to personal security on Xiaomi smartphones, many users are only thinking about it. PIN-It's a code or a fingerprint. But it's actually an ecosystem. MIUI It offers much deeper security tools, from hardware encryption to embedded antivirus and access control systems, and the problem is that most of these features are either hidden in the depths of the settings or require the right configuration to work efficiently.

In this article, we will not just list the standard tips like “set a password,” but we will examine Xiaomi’s unique security mechanisms that are not written about in the official instructions: how fraudsters bypass two-factor authentication through the use of a new security tool. SMS, Why Private Safe can become a trap for your data, and how to turn off hidden telemetry transmissions that potentially reveal your location even when you’re off GPS. And also practical cases, when standard settings MIUI Playing against the user and how to fix it.

What is “personal security” in the context of Xiaomi?

Xiaomi’s personal safety is defined as a set of measures aimed at protecting three key aspects:

• 🔒 Data privacy: protection against leaks of personal information (photos, messages, geolocation) through applications, cloud services or system vulnerabilities.
• 🛡️ Protection against unauthorized access: locking your smartphone when you steal, preventing hacking of your Mi Account.
• 🚨 Fraud prevention: filtering SMS/calls from bank scammers, blocking phishing links in the browser.

It’s important to understand that MIUI collects telemetry by default, as stated in the user agreement. But few people know that some of this data (such as the history of visited Wi-Fi networks) can be used to restore your travel route. And Quick Share, by default, allows access to your media files to any Xiaomi device within a 10-meter radius – just accept the request.

⚠️ In 2023, researchers discovered a vulnerability in the MIUI 14, which allows you to bypass the lock screen through emergency call. Xiaomi has released a patch, but on devices with unofficial firmware, the risk remains. → The phone. → Version. MIUI — It must be at least 2023.10.1.

Hidden Threats: What Does Xiaomi Know About You?

Even if you've never synced data to the Mi Cloud, your smartphone still sends information to Xiaomi's servers, here's a partial list of what's collected by default:

Smart Assistance is especially dangerous, and it analyzes your actions — for example, it can offer a taxi if you order an Uber frequently at a certain time — but it needs to know your schedule, frequented places, and even the content of notifications. It turns off Settings → Special Opportunities → Smart Assistance.

How scammers hack Xiaomi accounts (and how to avoid it)

The most common scheme of stealing a Mi Account is through substitution SIM-The fraudster calls the salon, introduces himself as you (using leaked data from the databases) and asks to re-release. SIM. After that, he gets SMS It's a confirmation code, and it resets the password from your account. Why does it work? Because it's the default password. MIUI There is no protection against changing your phone number, unlike Google or Apple.

The second loophole is phishing links in SMS. For example, you receive a message allegedly from Xiaomi Support asking you to confirm your account login at mi-account-secure[.]com (pay attention to the dot before com!).

Disable SMS Sign-in to Settings → Xiaomi Account → Security → Two-step authentication

Install a code generation app (Google Authenticator, Authy)

Check the attached devices in Settings → Xiaomi Account → Device Management

Create a backup email for recovery (not phone!)

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Another little-known attack vector is backup leaks, and if you've ever backed up Mi Cloud, your Wi-Fi passwords, your call history, even some of your messages, could have been saved unencrypted to delete this data:

1. Go to Settings → Xiaomi Account → Mi Cloud.
2. Select the backup of the device.
3. Click on the last copy and select Delete.
4. Turn off automatic backup.

Hardware protection: what can Xiaomi iron

Unlike many Android smartphones, Xiaomi devices (starting with the Redmi Note 10 and Mi 11 series) are equipped with a hardware security module – the Trusted Execution Environment (TEE), a separate chip that handles cryptographic operations (such as fingerprint encryption) outside the main operating system, so even if a virus infects MIUI, it will not be able to steal your biometric data.

Another feature is secure memory for storing passwords and keys, which in new models (such as the Xiaomi 13T or POCO F5) is implemented at the firmware level: even if you get root rights, an attacker will not be able to extract saved passwords from Keystore, but here’s the caveat: this protection only works if you have not installed custom firmware (such as LineageOS).

Xiaomi also has a physical privacy switch (on some models, such as the Xiaomi Mix Fold 3) that mechanically shuts down the microphone and camera — useful for meetings where there is no risk of data leakage. Activated by long pressing the power button + volume up.

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If you travel frequently, turn off automatic connection to open Wi-Fi networks in Settings → Wi-Fi → Additionally. → Auto-connect to open networks, which will prevent attacks through fake access points (e.g., access points, "Free_Airport_WiFi").

Privacy settings that need to be changed right now

Even if you think your smartphone is secure, check these settings, which are often the cause of data breaches:

1. Disable MIUI Recommendations This feature analyzes your actions and shows contextual advertising. Disables in Settings → Privacy → Special Permissions → MIUI Recommendations.
2. By default, any application can read what you copy (passwords, card numbers). Limit this to Settings → Privacy → Clipboard.
3. Remove unnecessary permissions for system applications For example, Mi Video by default requests access to contacts and location. Check in Settings → Applications → Permissions Management.
4. Turn off Smart Search in Mi Browser It sends all your search queries to Xiaomi servers. Alternatively, install Firefox Focus or Bromite.

Pay special attention to geolocation settings. MIUI has a hidden option called High-Precision Location, which uses Wi-Fi and Bluetooth data to refine coordinates. It's easy to navigate, but it lets you track even with GPS turned off. Disables in Settings → Location → Mode → Device Only (GPS).

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The most dangerous default setting is Automatic Sync with Mi Cloud. It uploads not only contacts to Xiaomi servers, but also a call log, notes, and sometimes SMS. Disable it in Settings → Xiaomi Account → Mi Cloud → Sync and manually select which data to save.

What to do if your smartphone is stolen?

If your Xiaomi is missing, follow this algorithm:

1. Lock your device through Find Device Go to i.mi.com, log in and select Lock Device. Specify a message with a number to communicate, and it will appear on the lock screen.
2. Change passwords from all accounts Start with email, social media, and banking apps. Use a different device or computer.

If you don't lock the device and it has Second Space enabled, the fraudster may not immediately know that the smartphone is protected, and in this mode, you create a separate desktop with other applications and data, and then you activate it.

1. Go to Settings → Special Opportunities → Second Space.
2. Create a second profile with a separate password.
3. Move important applications (banks, instant messengers) there.

⚠️ Warning: If a stolen smartphone had a bank card tied to Mi Pay, immediately block it through a mobile bank! in 2022, there were cases when attackers wrote off money through Mi Pay NFC, without unlocking the phone (a vulnerability in the MIUI 12.5).

Hidden MIUI features for advanced users

For those who want maximum protection, MIUI has undocumented features:

• 🔐 Encrypting user data in Settings → Additionally. → Encryption and credentials can encrypt the entire contents of the phone, and then the data will be unavailable without a password, even if you pull out the flash memory and connect it to another device!
• 📡 Lockdown IMEI If the smartphone was stolen, but it is not blocked, you can remotely burn» IMEI code #36446337## (not all models) and then it becomes a brick for a thief.
• 🕵️ In some models (for example, Xiaomi 12 Pro) you can start the camera without display on the screen. + Power button 3 seconds, useful for shooting in a dangerous situation.
• 🔄 Emergency Reboot in Safe Mode If your smartphone is infected with a virus that blocks access to settings, restart in Safe Mode: Hold the power button → long tap on "Switch off» → «Restart in Safe Mode. This mode only runs system applications.

For POCO and Redmi owners with unlocked bootloaders, there's another layer of protection, custom recovery (TWRP), with encryption, which allows you to back up copies that you can't read without a password, but remember, unlocking the bootloader resets all data and can take away warranties.

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If you often connect your smartphone to public charging (at airports, cafes), use a capacitor data blocker (costs) ~300₽). It prevents the transfer of data through USB, The alternative is to turn on Charging mode only in the notification curtain when connecting.

FAQ: Frequent Security Questions for Xiaomi