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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.\u00a0The 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\u00a0built-in security features on your Samsung phone<\/a>.<\/p>\n 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<\/a>. If Auto Blocker isn’t turned on for your device, it’s a single toggle you can find in the phone’s settings.<\/p>\n Ultimately, a USB connection does more than just recharge your phone; it offers a data connection, even when that isn’t the purpose for you plugging in. So when away from home, you have no way to know whether or not a port you’re using for charging has been compromised in an effort to steal data over that connection, or worse, install malware directly onto your phone, otherwise known as juice jacking. Luckily, it’s not common.<\/p>\n
<\/p>\n How to turn on Auto Blocker on your Samsung Galaxy phone<\/p>\n To turn on Auto Blocker, open Settings, then navigate to Security and privacy. Look for the Auto Blocker listing and select it, which will open a new page with the Auto Blocker toggle at the very top. Turn it on if you want the extra protection it provides, or turn it off if you don’t want to deal with any of its annoyances. Case in point, app stores like F-Droid will technically function and allow you to download APKs, but you won’t be able to install them as they come from an unverified source (according to Auto Blocker).<\/p>\n