Samsung Auto Blocker

Samsung Auto Blocker is designed to prevent and block smartphone security threats by activating various security settings at once, making it easy for anyone to quickly improve device security. Auto Blocker is only available on Galaxy devices running One UI 6.0 (Android 14) and higher, and is enabled by default. You can choose to disable it in the initial setup menu or on your device’s Security & Privacy settings page.

Auto Blocker enables the following basic functions:

• Blocks apps from unauthorized sources: Only apps from official stores such as the Google Play Store and Galaxy Store can be installed. If you try to install an app from an unauthorized source, a warning message will be displayed, and the app will not be installed. This feature effectively prevents the installation of malicious apps, which are the main attack route for voice phishing.
• Blocks commands by USB cable: Blocks commands from being passed through USB cables when devices such as chargers and PCs are connected. This prevents users from unknowingly receiving commands delivered by hacking tools disguised as chargers in public places.
• Blocks malware images in message apps: Enables Samsung Message Guard, which blocks malicious payloads disguising as images when you receive a message.
• Blocks software updates by USB cable: Prevents installation of unauthorized system software using a physical USB cable (e.g., unauthorized Android OS). This can stop malicious actors with physical access to your device from installing software without your knowledge.

Maximum restrictions

For users looking to have additional security protections, Auto Blocker has the option to enable Maximum restrictions. Enabling this setting may impact app usability and various device capabilities. Maximum restriction is disabled by default and can be enabled in Auto Blocker’s settings menu. When enabled, the following security features are activated:

• Turns on App protection: Checks for any suspicious apps during installation and post-installation. The specific antivirus solution on each device can vary by region.
• Blocks device admin apps: Disables device administrator apps and work profiles on your device. This protects against attacks that use these features to access or remotely control your phone.
• Blocks auto downloading attachments: Blocks the automatic download of files attached to messages. You can still manually download attachments from messages sent by trusted individuals.
• Blocks hyperlinks and previews: Prevents you from seeing previews for messages containing web addresses or accessing websites by selecting hyperlinks. If a trusted person sends you a message with a web address, you’ll need to copy and paste or type the web address in your browser.
• Removes location data when sharing pictures: Removes location information when sharing photos from the Gallery or Messages app. The recipient will not be able to know where the photo was taken.
• Blocks shared albums: Blocks the shared album menu and others cannot invite you to a shared album. This protects you from accidentally sharing pictures that might contain sensitive information or accepting invitations from unknown or deceptive senders.