A modern smartphone knows more about you than you do yourself. Geolocation, search query history, list of installed applications and even the content of conversations - all this data is collected for targeted advertising and improving algorithms. Many users do not even realize how deeply integrated information collection mechanisms are into the operating system. However, complete anonymity is possible if you know where exactly the privacy switches are hidden.
In this article we will analyze all the available ways to minimize your digital footprint. We will not discuss complex firmware methods, but will focus on standard tools that every device owner has. The correct configuration of the system allows you to maintain functionality, but significantly limit the appetite of corporations. Get ready for the fact that some familiar services may work less “smartly”, but your data will remain with you.
Before you start, you should understand that Google and shell manufacturers like Samsung One UI or Xiaomi MIUI are constantly changing the location of the settings. Interfaces are updated, menu items are renamed, but the logic remains the same. The most critical point is an integrated approach: disabling one parameter will not give the full effect, it is necessary to block all leak channels. Let's start with the most obvious - the search giant's account.
Manage settings Google account
The central hub for data collection is your Google account. This is where the history of locations, voice commands and YouTube views is stored. First, you need to go to your phone's settings, find the "Google" section and select "Manage Google Account." In the menu that opens, you are interested in the “Data and Privacy” tab. This is where the main levers for managing your digital identity are located.
In the "History Settings" section you will see a list of activities that the system tracks by default. This includes app and web history, location history, and YouTube history. Disablement these features are stopped by storing new data on the company's servers. However, it is worth remembering that the already accumulated information will not go anywhere, it must be deleted separately through the "Delete" button or the auto-deletion setting.
⚠️ Attention: After disabling location history, the "Timeline" functions in Maps and some smart reminders based on geolocation will no longer work. Make sure you are prepared to reduce the personalization of services.Also in this section you can configure the advertising identifier. It is used to show relevant advertisements in applications and the browser. By clicking on "Advertising", you can select the option to "Remove advertising identifier" or "Opt out of interest-based advertising". This won't remove ads completely, but it will make them random and less intrusive. Regularly resetting this identifier is also a good practice for confusing tracking algorithms.
Android system privacy settings
In addition to the Google account, the Android operating system itself collects telemetry. This data is sent to OS developers to analyze crashes and improve stability. To limit this flow, go to
Settings → Google → General. The "Send usage statistics" switch is located here. It needs to be deactivated. It’s also worth checking the “Other Google settings” section, where additional data collection items may be hidden, depending on the version of Android.An important element is the access of applications to sensitive sensors. In modern versions of Android (starting from 12th) a “Permission Manager” has appeared. It lets you see which apps accessed your camera, microphone, or geolocation in the last 24 hours. If you see that a calculator or flashlight is requesting access to a location, this is a clear sign tracking. Immediately revoke such permissions in application settings.
The geolocation service deserves special attention. Even if GPS is turned off, the phone can determine your location using Wi-Fi points and cell towers. To completely disable it, you need to go to
Settings → Location → Location Services. Here you should disable “Search for Wi-Fi networks” and “Search for Bluetooth devices”. This will prevent background scanning of the environment, which is often used to build movement profiles.☑️ Audit application permissions
Done: 0 / 4Why do applications need access to the clipboard?
Many applications read the clipboard to automatically paste verification codes or links. However, unscrupulous developers may be able to read copied passwords or other sensitive information. In Android 10 and higher, the system notifies you about such access, but it is better to manually check the permissions in the privacy settings.
Safe Mode and Advertising IDs
An Advertising ID is a unique set of characters assigned to your device. It allows advertisers to track your activities across different apps. Unlike browser cookies, this identifier is system-specific. It can be reset at any time, which will make your device as good as new for advertising networks. It is recommended to do this once a month.
There is the concept of “Safe Mode”, but in the context of surveillance they often talk about incognito mode or guest mode. However, to check for hidden spyware (stalkers), safe mode is used. It loads only system applications. If in this mode the phone starts to work faster and stops heating, it means that a third-party application is actively mining cryptocurrency or transmitting data in the background.
To enter safe mode, you usually need to hold down the power button, and then (hold for a long time) your finger on the “Shut down” or “Reboot” item on the screen. When prompted for confirmation, agree. To exit, simply reboot your device as usual. This is a great way to diagnose whether a specific application from the Play Market is causing a data leak.
Identifier type Where it is located Risk of leakage Protection method Advertising ID Settings Google High (targeting) Reset or delete IMEI System (hardware) Critical (device) Do not transfer to third parties Wi-Fi MAC address Network settings Medium (tracking in shopping centers) Use MAC randomization Android ID System High (binding) Factory Reset Limiting background activity of applications
Many applications continue to run even after you close them. They transmit location data, update your news feed, or sync files. To turn off this "background surveillance", go to
Settings → Applications. Select the suspicious app and look for "Battery Usage" or "Mobile Data". Here you can set a limit on background activity.Android 13 and later introduced the “Restricted Mode” feature for new applications. When you first install, the system asks if you can send notifications. If you answer "No", the application goes into restricted mode. It won't run in the background until you open it. This is an ideal option for applications that you rarely use, but do not want to delete.
⚠️ Attention: Messengers (WhatsApp, Telegram) and email clients require background activity to receive messages in a timely manner. By limiting them, you will no longer receive real-time notifications. Be selective in setting restrictions.You should also pay attention to the "Use data in the background" function. By disabling this toggle for a specific application, you will prevent it from using the Internet when it is minimized. This effectively blocks the transfer of analytics, but can disrupt the functionality of navigators or fitness watch trackers. Check the list of apps that can access your data regularly.
Use Digital Wellbeing to set time limits on apps. This will not only reduce screen time, but also reduce the amount of data that the application manages to collect per session.
Setting up the browser and DNS for anonymity
The browser is the main window on the Internet, and it is also the main channel for leaking data about your interests. Standard Chrome syncs history with your Google account. To increase privacy, it is recommended to use alternative browsers such as Firefox, Brave or DuckDuckGo. They have built-in tracker blockers and do not create a digital user profile.
The most important step is setting up a private DNS. By default, your ISP sees all requests you make, even in incognito mode. Using DNS-over-HTTPS encrypts these requests. In Android settings, go to
Settings → Connections → Other settings → Private DNS. Enter the provider's address, for exampledns.googleor1dot1dot1dot1.cloudflare-dns.com. This will hide your browsing history from your carrier.Don't forget to clear site data and cookies. In Chrome this is done via
Settings → Privacy → Clear history. Select the "All time" period and check "Cookies" and "Images and other files". Regular cleaning prevents the accumulation of trackers that follow you across different sites. It is also useful to disable synchronization of history and passwords if you do not want Google to have a complete copy of your browsing activity.Additional security measures and reset
If you want to be sure that there are no hidden Trojans or system backdoors, the most radical and effective method is a full reset (Factory Reset). However, before this, you need to properly prepare the device. Remove your Google account from the settings to prevent anti-theft protection (FRP) from working, and back up only your personal files (photos, documents), excluding system and application settings.
During the initial setup, after resetting, do not immediately log into your Google account. Skip all setup steps and do not restore from a backup if it contains application data. Set up your phone like new. This will avoid automatic installation of applications with trackers. After logging in, immediately apply all the privacy settings described above before installing third-party software.
Remember that absolute anonymity in a modern smartphone is a myth. Cellular base stations always know your approximate location, and the IMEI of the device is unique. However, following these instructions turns you from an easy target for algorithms into a difficult target that requires resources that are not commensurate with the value of your data to the average advertiser.
Comprehensive application of privacy settings, private DNS and application permission control reduces the amount of data collected by 80-90%.
Frequently asked questions (FAQ)
Does disabling surveillance affect the speed of the phone?
Yes, it can have a positive effect. Disabling background synchronization, geolocation, and constant checks for updates reduces processor load and saves battery power. The phone can work faster, since fewer resources are spent on telemetry transmission.
Is it possible to completely remove Google from Android without flashing it?
Without root access and flashing it to custom builds (for example, LineageOS), Google system services cannot be completely removed. However, you can disable their operation, deny access to the network and not use Google Play services by installing an alternative application store (F-Droid).
Is it safe to use third-party DNS?
Using trusted DNS providers (Cloudflare, Google, Quad9) is safe and even increases security by protecting against phishing sites. However, you are sharing your query history with the owner of the DNS server, so choose only reliable companies with a no-logging policy.
Do I need to turn off GPS if I am not using a navigator?
Yes, it is recommended. Even if you don't have maps open, apps may request your location in the background. It is better to turn on GPS only when necessary or use the "Device Only" mode, which does not use Wi-Fi networks to determine coordinates.