In the descriptions of Samsung smartphones, there is often a mention of KNOX support. But sellers prefer not to write extended information about what this function represents, limiting themselves to one line. What is KNOX - this article will help you figure it out.
What is KNOX
KNOX is a specialized add-on for the Android OS, designed to significantly increase the level of information protection on mobile device from Samsung. This system includes a set of extensions that allows you to create a secure environment on the platform from Google. Among them are a special isolated zone for program execution, a 256-bit encryption mechanism and a secure boot facility.
In other words, KNOX is a secure folder where you can install applications, transfer any files and store them there under a separate password. An application installed in this folder becomes independent of the same application installed outside the folder. So messenger app or social network, located in the KNOX folder, you can "log in" under a different account. Thus, on one smartphone you can have two Skype with different accounts. If you delete an application outside the KNOX folder, it will remain in the folder. Access to secure applications is only possible with a password or fingerprint.
Samsung's KNOX also includes TIMA, an API that controls the state of the operating system kernel and its integrity. On the part of the user, the add-on makes it possible to control the access of applications to network resources through a secure VPN connection.
For users using Samsung smartphones in the corporate segment, this functionality provides a reliable mechanism for protecting confidential data from leakage. It has protection mechanisms on all major fronts, preventing network hacking of a smartphone or tablet, installing spyware, modifying the system kernel to create "bookmarks", as well as elementary file copying when the gadget falls into the hands of intruders.
How KNOX works
The KNOX complex is available on Samsung smartphones starting from Galaxy models S3 and newer. Theoretically, installation on other devices is also possible, but no one officially guarantees this.
The main element of KNOX is a kind of virtual Android system, located “inside” the main OS. It creates a completely isolated software environment with its own encrypted file system, which cannot be accessed without KNOX. At the same time, Samsung allows reading data located outside this shell without leaving it.
At system startup, the architecture integrity protection mechanism checks the OS kernel for tampering. Theoretically, this eliminates the possibility of modifying Android by third parties to create "bookmarks". But this mechanism also has a minus, which consists in the incorrect operation of root access (if the owner requires it).
After checking the integrity of the kernel, a secure KNOX boot occurs, the mechanism of which controls autorun. The main purpose of this function is to prevent the execution of tasks for which the user has not given permission to run in the background.
Each application inside the KNOX container can be managed by controlling the access level. This avoids cases where the program requests permission to use functions that are not implemented in it.
Support for virtual private VPNs gives you peace of mind that valuable corporate data will be leaked when connected to unsecured public and home networks.
Video review of the main features of KNOX
You will also like:
What are the sensors in smartphones
Every day the issue of cybersecurity becomes more acute and relevant. And if earlier attackers tried to get only the business data of enterprises, now they do not disdain private information of citizens for personal gain. Therefore, users need reliable protection, which Samsung has already offered. KNOX: what is this program and is it needed?
Access to the vault is provided by entering a password or scanning a fingerprint. The crypto algorithm is based on 256-bit encryption, which minimizes the risk of information leakage. It is also worth noting that the applications added to KNOX are only a protected copy regular program, which allows you to separate important data from everyday and efficiently use the device's memory.
Pros and cons
Analyzing the product description and user reviews, we can highlight the main advantages of the application:
- high level of protection;
- intuitive interface;
- the ability to track a lost smartphone;
- function of remote blocking of the device in case of theft;
- built-in VPN;
- economical use of phone resources.
But despite the obvious advantages, there are also disadvantages:
- problems with obtaining and using root rights;
- the ability to install only official apps and exclusively from the Play Market;
- stable operation only on Samsung smartphones.
Attention! Download the application only from official sources! Do not install .apk files downloaded from the forums!
Developers recently announced new program, which will become the successor to the sensational KNOX - Secure Folder. The application offers an improved data encryption algorithm, low energy consumption and a number of new features and settings that provide a comfortable use of secure storage.
How to delete?
To do this, follow a few simple steps:
- Open "Settings".
- Go to Applications.
- Find "KNOX" and tap on it.
- Click the "Delete" button.
- Confirm the action.
Now you have learned a lot about KNOX: what kind of program it is and whether it is needed. For more detailed information recommended to watch the video:
Users of smartphones and tablets from Samsung can often see the unusual abbreviation KNOX. Especially often it is found on the forums in the firmware section for smartphones. What does this abbreviation mean?
What is KNOX?
Samsung's KNOX is a unique solution that enhances security at both the hardware and application levels. KNOX allows you to implement a kind of container, which in turn creates a separate environment for work, data storage, and approved applications. The bottom line is that the data that is inside this storage is reliably protected from hacking attempts, from phishing, from malware, etc. Moreover, you can count on security even if the device is lost.
KNOX was first announced in 2013 and began to be installed on devices starting with the S3 model. Since KNOX is present in Google Play Market, this, in theory, suggests that it can be installed on earlier devices of the Korean company.
How does KNOX work?
KNOX, as we have already found out, allows you to create a container inside the current operating Android systems. In fact, a second own operating system, which has its own home screen, widgets, and even its own application installation system. All data that is installed inside the container is not related in any way to other applications or files that are stored outside the container. At the same time, in individual cases the user can grant access to protected applications to read data outside the container, for example, if an address book is needed.
All files inside the container are encrypted using Advanced Encryption Standard (AES) with a 256-bit key, and in addition, the system can be configured to use a VPN for each application.
Additionally, three functions have been built into KNOX:
- TIMA Integrity Check System (TrustZone-based Integrity Measurement Architecture)
- Increasing the overall level of Android security
These systems generally ensure that data is kept secure. With the threat of some changes, the system can even turn off the device - for security purposes.
In short, if you need increased security for storing data, KNOX can be a great solution for you.
Samsung KNOX was made to enhance the protection of the Android system and your data in general. Beginning with android versions 4.3, the Korean giant began to add this program to the firmware of its smartphones and tablets by default. This has become a great solution in a business environment where the first priority is not ease of use, but the security and safety of your personal information.
But this started to cause problems for ordinary users, especially if you got ROOT rights. You must have encountered the following error:
"SuperSU attempted to access a system item on your device without permission. This attempt was blocked. To improve security, you can remove apps downloaded from unauthorized sources”
At the same time, you do not fully have root rights, since they are blocked. But this problem can be solved by removing or disabling Samsung KNOX. There are 5 ways to do it.
Method #1: For non-root users
- 1. Find the KNOX utility in the list of applications and launch it.
- 2. Press the menu button and select “KNOX Settings”
- 3. Select “Remove KNOX”
- 4. When asked during the uninstall process if you want to backup Knox data, click "Back Up Now".
- 5. If your password is asked, enter it.
- 6. Click “Next” and then the “OK” button.
Now you got rid of the annoying protector.
This instruction is suitable for smartphones on the stock firmware without root rights. If you have them, then the remaining 4 methods will suit you.
Method number 2: Install KNOX Disabler
The easiest way to disable Knox if you have superuser rights is to install the KNOX Disabler utility. Install it, run it and click on " Disable". No more annoying messages will bother you.KNOXDisablerFree_v1.0.1.apk (downloads: 35638)
The utility works with all popular smartphones: samsung galaxy S5, Galaxy S4 (Mini and regular versions), Note, Mega and tablets: Note 10.1 (2014). Tab S. And it's not full list devices. It can also be done using the terminal.
Method #3: Disable Knox via Android Terminal Emulator
- Install Android Terminal Emulator in Google Play.
- We launch it, the application wants to get root rights - we give them to it.
- We enter the command
su pm disable com.sec.knox.seandroid
- If something goes wrong, you can always enter the command again, replacing the word disable with enable.
Method number 4: Using Titanium Backup
- Go to Google Play and download https://play.google.com/store/apps/details?id=com.keramidas.TitaniumBackup Titanium Backup.
- Install and run the app you just downloaded.
- Click on the search icon at the top and enter the word “Knox” in the field. You should have a list of the following files:
com.sec.enterprise.knox.attestation
com.sec.knox.eventsmanager
KLMS Agent
KNOX
Knox Notification Manager
KNOX Store - Select them and click the "Freeze" button.
- Reboot your device.
If 1-2 for you will not have any glitches, then later these files can be deleted completely.
Method number 5: Using Explorer
- Download from Google Play for free file manager root explorer
- Go to the "/system/app" directory and delete the 6 files described in method 4.
- Restart your phone
Now you know the most simple methods how to remove samsung knox from smartphone or tablet. If you still decide to leave this utility, you can download the official instructions.