Samsung phones have had the Auto Blocker feature for some time now to protect you against online threats. However, Samsung has enhanced this feature with the Galaxy Z Flip 6 and Z Fold 6. The feature works when the phone boots and actively blocks the sideloading of APKs. That means it prevents installing apps from sources other than the official app stores.
The Auto-blocker feature works on latest Galaxy Z model or have an older Samsung phone – as long as it runs One UI 6.1.1 update. Here’s what Auto Blocker is, how it works, and when you can consider using this security feature.
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What Is Auto Blocker on Samsung Galaxy Phones
The Auto Blocker feature made a debut on Samsung Galaxy phones with One UI 6. It is turned off by default. But, you can enable it from your Galaxy phone’s Settings > Security and privacy > Auto Blocker.
After that, Auto Blocker does three things by default:
- Blocks apps from unauthorized sources.
- Turns on automatic malware scans for apps installed on your phone. Samsung partnered with McAfee for that.
- Blocks commands from being executed via USB cable. So malicious computers, chargers or other devices can’t run commands on your phone. Also, USB debugging gets greyed out.
There are two additional options you can turn on manually:
- Messaging app protection (blocks images that may contain malware in messaging apps).
- Block software updates by USB cable (prevents the installation/update of your system software using a USB cable).
Auto Blocker on Galaxy Z Flip 6, Z Fold 6, and Later
On the Samsung Galaxy Z Flip 6 and Fold 6, Auto Blocker is turned on by default. When initially setting up the phone, you’ll see a page informing you about Auto Blocker restrictions and an option to turn it off. If you don’t disable it there, your phone will keep it enabled by default.
The Auto Blocker prompt during Z Fold 6 setup (left) and the Auto Blocker option in Settings (right). Tap to zoom:
On these phones, the options are slightly different. Here’s what Auto Blocker does by default:
- Blocks apps from unauthorized sources.
- Blocks commands by USB cable.
- Blocks malware images in messaging apps.
- Blocks software updates by USB Cable.
New Maximum Restrictions Mode
If you want to add more restrictions, you can turn on Maximum Restrictions on the same page, which offers extra-strong protection, including the following (tap to zoom the image):
- Turns on app protection, which is, automatic malware scans for apps.
- Blocks device admin apps and work profiles from being activated on your phone.
- Blocks hyperlinks and their previews in Samsung Messages to prevent you from visiting messages containing malicious links.
- Blocks shared albums. The shared album menu is removed, and people can’t invite you to shared albums. This protects against invitations from strangers that may share unwanted or sensitive pictures.
- Automatically removes location data when sharing a picture from the gallery. This prevents the recipient from knowing where the picture was taken.
New Auto Blocker vs. Old Auto Blocker
The Auto Blocker on the Galaxy Z Flip 6 and Fold 6 gets a dedicated Maximum Restrictions mode, replacing the two additional options found on older models. It has more security features including blocking device admin apps, hyperlinks and previews, shared albums, and removing GPS tags from photos.
The table below outlines the differences between the old and new Auto Blocker features:
| Feature | Old Auto Blocker | New Auto Blocker |
|---|---|---|
| Default State | Off | On (for Galaxy Z Flip 6, Z Fold 6, and later) |
| Activation | Manual | Automatic, by default but can be turned off when setting the phone or later in settings |
| Blocks Unauthorized Apps | Yes | Yes |
| Automatic Malware Scans | Optional | Yes (in Maximum Restrictions mode) |
| Blocks USB Commands | Yes | Yes |
| Messaging App Protection | Optional | Yes |
| Blocks Software Updates via USB | Optional | Yes |
| Blocks Device Admin Apps | No | Yes (in Maximum Restrictions mode) |
| Blocks Hyperlinks & Previews | No | Yes (in Maximum Restrictions mode) |
| Blocks Shared Albums | No | Yes (in Maximum Restrictions mode) |
| Removes Location Data on Share | No | Yes (in Maximum Restrictions mode) |
Who Should Use It and When
Auto Blocker is helpful for those less familiar with smartphone risks, like accidentally downloading harmful apps or clicking on suspicious links. It’s a great way to add an extra layer of protection against online scams and APK fraud, especially when setting up a phone for a less tech-savvy parent or child.
Even if you’re well-versed in the ins and outs of Android security, Auto Blocker offers peace of mind, especially when you’re out and about on public Wi-Fi or feeling a little extra cautious. Businesses can also take advantage of this feature to tighten security on company devices, adding another layer of protection on top of Samsung’s Knox security.
If you have a Galaxy Z Flip 6, Z Fold 6, or a newer model, Auto Blocker is already turned on – you can adjust the settings if needed. For older Galaxy phones with One UI 6, just head to your phone’s settings and turn it on.
What To Do On Phones That Do Not Have Auto Blocker?
If you’re using a non-Samsung phone or an older model without the Auto Blocker feature, don’t worry. Just stick to downloading apps from the official Google Play Store or your phone’s brand-specific store. These platforms have stricter security measures in place, so you’re less likely to download a rogue app that’s actually malware in disguise.
Another easy step is to ensure Google Play Protect is enabled. It automatically scans your phone for bad apps in the background. If you want to go the extra mile, consider installing a third-party security app like Malwarebytes, but it’s not a must-have.
When you’re out and about on public Wi-Fi, be extra cautious and avoid using banking apps or websites. These networks are often unsecured, so use a good VPN to encrypt your data and keep prying eyes away. And of course, always use strong PINs and passwords – you don’t want any unwanted guests snooping around your phone.
Finally, keep your phone’s software updated. Those updates aren’t just for new features; they often include crucial security patches that fix vulnerabilities and keep your phone safe from the latest threats. By following these tips, you can enjoy peace of mind knowing that your digital life is well-protected, even without Auto Blocker.
