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Samsung first introduced its Auto Blocker feature back in October 2023 with the arrival of One UI 6. At the time, its feature set, which includes defending against USB port attacks, was opt-in. With the launch of One UI 6.1.1 in July 2024, Samsung turned Auto Blocker on by default for new phone releases. The setting didn't change on its own for older devices that were updated; you'll have to manually flip the switch. Once it's on, leave it on. We recommend you never disable built-in security features on your Samsung phone .

This setting also blocks unauthorized apps outside of the Galaxy Store's and Play Store's authorized offerings. The feature is a shield for your Galaxy Phone, which pairs well with Samsung's built-in spam call protection that actually works .…