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What does Auto Blocker do on Samsung phones and how does it protect the device?

An overview of Auto Blocker, a built-in security feature included in Samsung Galaxy devices running One UI 6.0 or later.

Learn how the system handles default app installation restrictions, message filtering, and USB command security.


What does Auto Blocker do?

This feature filters apps, USB commands, and messages that could put your device at risk. Specifically, it prevents the installation of apps from sources other than the Google Play Store and Samsung Galaxy Store. It also blocks harmful commands that may be sent via a USB cable when charging in public places.

Additionally, it filters images suspected of containing harmful content in popular messaging apps, such as Samsung Messages, Google Messages, Messenger, WhatsApp, and Telegram. For added protection, Samsung has an additional setting for tighter restrictions. This adds measures such as blocking device management apps and work profiles, disabling 2G connections, preventing automatic reconnections to unsecured Wi-Fi, and removing location data from photos.

Disputes and regulation of operation

Epic Games had filed a lawsuit against Samsung, claiming that this feature made it difficult to download apps outside of official stores. This lawsuit was eventually dropped after an agreement was reached between the two parties.

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Users can disable Auto Blocker by going to their device's settings under the security and privacy section, selecting the relevant switch, and verifying their identity. On devices running One UI 8.5 or later, users can also choose to automatically re-enable the feature thirty minutes after disabling it.

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