Many smartphone owners face intrusive advertising, strange SMS messages and constant calls from scammers. In the MIUI operating system and the new HyperOS, developers have built a powerful built-in protection module that often remains hidden from the eyes of the average user. The question of where on Xiaomi Antispam arises for those who want to secure their device without installing third-party software.
Finding this feature can be challenging because of menu localization and frequent changes in interface structure. However, the system blocker is a key element of the brand ecosystem that provides basic digital hygiene. In this article, we will detail the ways to access settings, explain the difference between call filters and online advertising, and consider subtle settings that few people know about.
Understanding the way that the built-in protection works will allow you to make your gadget a lot more comfortable, and you'll learn not just to find the right switches, but also to customize them to your needs, cutting out the extra and missing the important ones, which is especially true in the face of the growing flow of digital noise.
The way to settings through the Security app
The most direct and reliable way to get to the desired parameters is to use a pre-installed system application. It usually has a green icon with a shield and is located on the home screen or in the Tools folder. This is where all the main optimization and protection tools for your Xiaomi are concentrated.
Once you start the program, scroll down or look carefully at the icons available. You're interested in a section that might be called "Antispam" or have an appropriate icon. If you don't see it right away, it may be hidden in the app's own optional settings menu, which you can access by clicking three dots or a gear in the corner of the screen.
⚠️ Note: Don't confuse system antispam with separate applications from third-party developers that you may have accidentally installed. MIUI Security as it has deep integration with the call and message system.
Inside the section, you will see a control panel where you can activate the blocking of unwanted calls and SMS. Here you can often find the blacklist settings and statistics of blocked threats. The interface may differ depending on the firmware version, but the logic remains the same for all models.
Alternative ways to access through Settings
If the app icon is lost or you prefer the classic Android settings menu, you can get to the feature through the system interface. This method is especially useful if the app shortcut has been removed or hidden in folders. The path can vary slightly depending on the version of Android and the shell.
Go to the main smartphone settings menu and find the app or feature section. Newer firmware versions often have a separate “Fraud Protection” or “Security” item that duplicates the main app’s features, and you can also search by settings by typing in a “spam” or “lockdown” request.
For advanced users, you can access through specific application settings, such as Phone or Messages. When you open the Phone app settings, find Antispam or Lock, and you can set filters directly for incoming calls without going into the general security application.
- 📱 Open “Settings” and select “Apps».
- 📞 Find the system application "Phone" or "Security" in the list».
- 🔒 Go to “Permissions” or “Notifications” for detailed settings.
- 🛡️ Activate the switches blocking unknown numbers.
System settings give you deeper control over permissions, so you can prevent certain applications from accessing your contact list or sending SMS, which is also part of the fight against spam, and this approach provides comprehensive protection at the operating system level.
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Use the search in the settings (the magnifier at the top of the screen) by entering the word “spam” is the fastest way to find the desired feature on any version of MIUI.
Filtering of calls and messages
Once you've found where Xiaomi Antispam is, you need to set it up correctly, just turn on the function isn't enough to effectively protect it, and it offers flexible tools to sort incoming traffic, allowing you to create exceptions and adjust the levels of filtration aggressiveness.
In the locker settings menu, you'll find switches for different categories, you can separately activate blocking of advertising calls, numbers that define "probably spam" and hidden numbers, and similar settings are available for SMS messages, where you can filter messages by keywords or senders.
Special attention should be paid to the function “Keyword Blocking”, which is a powerful tool that allows you to screen out messages containing certain phrases often used by scammers, you can add words to the list yourself, creating a personal filter that will work automatically.
| Type of lockdown | Description of function | Recommended status |
|---|---|---|
| Promotional calls | Blocks numbers from known telemarketing databases | Included. |
| Hidden numbers | Rejects calls without number determination | If you wish, |
| Keywords (SMS) | Filters messages on given phrases | Set up |
| Foreign numbers | Blocking challenges from other countries | Off. |
Don't forget to set up notifications for blocked events. By default, the system can silently reject calls, and you won't even know that someone has tried to reach you. By setting up a lock log, you can periodically check the list of rejected contacts in case of a filter error.
☑️ Setting up Antispam
Combating advertising notices and PUSH-spam
Often, under the query “where antispam” users do not mean calls, but annoying advertising that pops up in the browser or in the form of a browser. PUSH-This is a separate layer of problems that is solved not only by the standard call blocker, but also by the settings of the browser and system. MIUI.
First, clear the notifications of debris, go to the notification settings and see the list of applications that have the right to display messages on the screen, and turn off this feature for all suspicious or unnecessary programs, especially for file managers, cleaners and games.
The second front is the browser, and if ads pop up when you unlock the screen or at random, you've probably allowed a site to send notifications, go to your browser settings (Chrome, Mi Browser), find the Notifications section, and deny access to all sites, or remove suspicious permissions.
⚠️ Warning: If the ad appears even after the screen is locked and rebooted, there may be a malicious app installed on the device. Check the list of installed programs and delete anything that has been downloaded recently and does not have an icon or name.
Also, MIUI has a separate section for ads from the system itself: Go to password and security settings, find Access to Personal Data or Advertising Services, and turn off ad personalization, which won't take away ads completely, but will make them less intrusive and relevant.
Working with the Black List and Exclusions
Effective anti-spam is impossible without a well-designed blacklist. Unlike simple blockers, Xiaomi's system allows you to create complex rules, you can block a specific number, a group of numbers, or even entire prefixes.
To add a number to the blacklist, open a call or message log, click on the number and select Lock. You can also manually enter the number in the Antispam settings. You can import contacts from the blacklist of other devices or files, which is convenient when migrating.
However, it is important not to overdo the lockdowns. Sometimes important calls may come from unknown numbers (couriers, doctors, emergency services). For such cases, set up Do Not Disturb mode with exceptions or create a white list of contacts from which calls will always pass, even if full lock is enabled.
- 📞 Go to the call log and select a number.
- 🚫 Click "Block" in the menu that appears.
- ⚙️ Or go to Antispam. → Settings → Blacklist.
- ✅ Add the number manually or from contacts.
Check the blacklist regularly, and over time, you may accumulate numbers that are no longer relevant, or you may accidentally block an important contact, and flexible list management is a guarantee that you will not miss anything important.
What if an important number is blocked?
Updating databases and additional functions
To work effectively, filtering requires that spammer databases be up to date. Security provides automatic or manual updates to cloud databases. Without this step, the phone will only block numbers that are already known to the system locally.
Go to the Antispam settings and find the “Update Bases” option, which is recommended to do regularly, especially if you’ve started receiving a lot of new types of spam, and enable automatic updates when connecting to Wi-Fi to ensure that protection is always on top.
Newer versions of HyperOS have added AI-powered features that analyze callers behavior and flag suspicious calls before you pick up the phone. Make sure the app has the necessary permissions to analyze calls and access the network.
In addition to basic lockdown, the system offers a Guest Mode or Second Space feature that can be used to isolate suspicious activity. If you frequently log into questionable sites, do so in a second space to keep the main number and data clean.
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Regularly updating antivirus databases and spam lists is a critical procedure, without which the built-in defender loses up to 80% of its effectiveness against new threats.