Smartphone Samsung Galaxy A52 has long established itself as a reliable middle-class device, but its security functionality is often underestimated. Many users store confidential information on their phone that should not be accessible to prying eyes. A standard screen lock protects the device from accidental activation, but does not hide the contents of individual apps from someone who has already unlocked the phone.
The operating system Android with shell One UI from the South Korean giant implements powerful tools to protect privacy. You can not only hide icons, but also require additional authentication every time you launch the selected software. This is especially true for instant messengers, banking clients and galleries with personal photos.
In this article we will look in detail at how to set up application protection for Samsung A52. We will look at the native functions of the system, the possibility of creating an isolated space, and third-party solutions. You will learn to control access to your data and can be confident in its safety even when transferring the device into the wrong hands.
Using Secure Folder to isolate applications
The most effective and built-in method of protection is to use the function Secure Folder (Secure Folder). This is not just a folder with a password, but a full-fledged isolated space inside your operating system, powered by technology Knox. Applications placed there exist, as it were, in a parallel universe of your smartphone.
To activate this function, you need to go to the settings menu and find the section Biometrics and security. There you will see the item Secure Folder. The system will ask you to accept the terms of the license agreement and create an account Samsung Accountif it is not already associated with the device. This is a mandatory requirement for the encryption service to work.
⚠️ Attention: Do not forget the password or PIN code from Secure Folder. Restoring access to data inside this folder through standard Google account reset procedures is impossible without a recovery code, which the system will prompt you to create during the first setup.
After creating the folder, a corresponding icon will appear on the desktop. Inside it, you can add copies of any installed applications. For example, you can have two WhatsApp accounts: one in the main system, and the second inside a secure folder, accessible only after entering a password or scanning a fingerprint.
☑️ Setting up a Secure Folder
Setting up biometric lock screen protection
Before requiring a password to log in into a specific application, it is necessary to ensure reliable protection of the device itself. Samsung A52 equipped with a fingerprint scanner built directly into the display, as well as a facial recognition system. The use of biometrics makes the unlocking process quick and convenient.
Go to Settings → Biometrics and security. Here you can register your fingerprints. The system allows you to save up to several fingerprints, which is convenient if different family members use the phone, but for maximum security it is better to use only your data. It's also worth setting up Face recognition, although it is less reliable than the finger scanner.
It is important to understand the difference between the types of blocking. A pattern or a simple 4-digit PIN is easier to crack than a complex password containing letters and symbols. For critical data, it is recommended to use complex password. You can set it up in the section Screen lock type.
- 🔒 Pattern key - it’s convenient to draw, but there may be fat marks on the screen that an attacker will use to guess_pattern.
- 🔢 PIN code - quickly entered, but combinations like 1234 or 0000 are not secure.
- 🔑 Password - the most secure option, requiring you to enter an alphanumeric combination.
- 👆 Fingerprint - the optimal balance between speed and security for everyday use.
Blocking through the settings of the applications themselves
Many modern applications have a built-in function system-independent protection. This is especially true for instant messengers and social networks. Checking the settings inside the software itself often allows you to set an additional barrier without installing third-party apps.
In WhatsApp this function is located in the section Settings → Privacy → Screen lock. By activating it, you can require Face ID or fingerprint every time you enter chats. Similar settings are available in Telegram (Settings → Privacy → Passcode) and many banking applications, where biometrics are enabled by default to confirm transactions.
However, not all apps have such functionality. The gallery, notes, or voice recorder may not have a built-in lock. It is in such cases that system solutions Samsung or third-party software come to the rescue. Always check the privacy section in the settings of an application that is important to you before looking for external solutions.
What to do if the application does not have privacy settings?
If the application does not have a built-in lock, the only reliable way is to place it in a Secure Folder or use specialized application lockers that block the screen by requiring a password when launching any selected app.
Third-party blocker applications from Google Play
If the built-in tools are not enough, the store Google Play offers many solutions from third-party developers. apps such as AppLock, Norton App Lock or Smart AppLockwork on the principle of overlaying other windows. When you try to open a protected application, the blocker displays its screen asking for authorization.
When installing such software on Samsung A52 you must provide it with a number of special permissions. First of all, this is permission to display on top of other windows. Without this right, the application will not be able to block the interface of the protected app. You will also need access to usage statistics so that the blocker understands which application you are running.
⚠️ Warning: Third-party blockers may consume additional battery power and sometimes conflict with Android system updates. Use only proven applications with high ratings and a large number of reviews.
Some antiviruses, for example from Kaspersky or ESET, also have application protection modules. This can be a convenient all-in-one solution if you already use antivirus software. However, it is worth remembering that the presence of too many protective layers can slow down the smartphone.
| Application | Type of protection | Presence of advertising | Difficulty of bypass |
|---|---|---|---|
| Secure Folder | System (Knux) | No | High |
| Norton App Lock | Third-party | No (in the database) | Medium |
| AppLock (DoMobile) | Third-party | Yes (in) | Medium |
| Smart AppLock | Third-party | Yes | Low |
| Secure Folder | Isolated environment | Absent | Maximum |
| Norton App Lock | Launch blocking | Absent | Average |
| AppLock | Lock + Hidden mode | Present | Medium |
| Smart AppLock | Basic lock | Present | Low |
Do Not Disturb mode and user profiles
Although the mode "Do not disturb" does not put a password on applications, it limits notifications and calls, which indirectly affects privacy. Samsung A52 you can flexibly configure exceptions. For example, hide the contents of WhatsApp notifications on the locked screen so that no one reads the message just by looking at the phone.
A more advanced method is to create additional user profiles. Unlike some other brands, Samsung allows you to create guest modes or profiles for children. In guest mode, access to your main applications and files is completely blocked. The guest sees only a basic set of apps and cannot exit this mode without your permission.
To configure profiles, go to Settings → Accounts and Backup → Users. Here you can add a new user. This is an ideal option if you give the phone to a child for games or a friend to make a call, but do not want them to browse your gallery or correspondence.
Guest mode is the best temporary security measure when you need to give the phone to another person, but there is no time to configure individual locks.
Hiding applications from the home screen
An additional level of security is hiding application icons from the desktop. Even if an app doesn't have a password, keeping it out of sight makes it less likely that someone will try to open it. In the shell One UI this function is implemented very conveniently.
Hold your finger on an empty space on the desktop and select Settings (or find this item in the general screen settings). There will be an option Hide applications. By selecting it, you can check the boxes of those apps that you want to remove from view. They will disappear from the desktop and from the menu of all applications.
To find a hidden application, you will need to use the search or return to the settings and uncheck the hide box. This does not put a password on startup, but effectively hides traces of use. By combining hiding icons and setting passwords inside Secure Folder, you achieve the maximum level of privacy.
- 👁️ Hiding does not remove the application, it simply hides the shortcut.
- 📂 Hidden applications continue to receive notifications unless otherwise configured.
- 🔍 You can find hidden things through a global search in the system.
- ⚙️ To return the shortcut, you need to go to the desktop settings again.
Frequently asked questions (FAQ)
Is it possible to set a password for only one specific application without Secure Folder?
Yes, this will require installing a third-party blocker application from Google Play, since the standard Android interface does not allow blocking individual shortcuts outside of an isolated environment. However, this is usually not required for banking applications, since they request biometrics on their own.
What happens if I forget my Secure Folder password?
If you do not create a recovery code during setup, the data inside the folder will be lost forever. You can reset your password through your Samsung account only if the corresponding recovery option has been activated. Without it, even the support service will not be able to help.
Does installing blockers affect the speed of the Samsung A52?
Minimal impact is possible, since the blocker constantly hangs in the background and monitors running processes. On a powerful processor Samsung A52 this is almost unnoticeable, but on older devices there may be a slight delay when opening applications.
Does app locking work if the phone is turned off?
No, app locking only works when the device is turned on and unlocked. If the phone is turned off, the attacker will not be able to access any app until he enters the password or puts his finger to turn on the smartphone itself.
Is it possible to hide the Secure Folder icon itself?
Yes, in the Secure Folder settings there is an option "Hide the Secure Folder icon." After its activation, the icon will disappear from the desktop. To get to the folder, you will need to add the Secure Folder widget to the home screen or search for it through the system settings.