Mishal Rahman/Android Authority
TL;DR
- One UI 9 is expected to introduce a Memory Tagging Extension (MTE) toggle directly in the Auto Blocker app.
- MTE leverages Arm v9 CPU features to proactively tag memory blocks, preventing unauthorized access, data corruption, and security flaws.
- This advanced security isn’t free – Samsung warns that enabling MTE will slightly reduce your phone’s performance.
Most people don’t realize how easily apps can abuse your phone’s memory. Simple memory mistakes can lead to corrupted data, unauthorized access, or even security holes. Arm’s v9 CPUs have a hardware feature called Memory Tagging Extension (MTE) that can catch these bugs as they occur. However, until recently, hardly any phones let you enable it.
This is probably about to change. Some strings we’ve seen in Samsung’s Auto Blocker app suggest that One UI 9 may let users turn on MTE with a simple switch.
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Enables memory tagging extension Detects and prevents memory issues like corruption and unauthorized access in your apps by tagging memory blocks. Ensures memory is used correctly, enhancing security and stability. This can reduce your phone's performance. This feature isn’t just an afterthought – Pixel 8 phones already have it in developer options, and it turns on automatically with advanced security. Now it looks like Samsung is preparing to do the same.
So what does MTE actually do? It tags memory blocks so the system can detect when an app tries to use them incorrectly, such as reading from where it shouldn’t or writing to another app’s space. This means fewer accidents, better stability, and stronger protection against common security exploits.
assembledebug/androidauthority
There is one tradeoff: MTE may slow down your phone a bit. As Samsung says, “This may reduce your phone’s performance.”
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MTE is not applied yet until reboot Restart later
To turn on Maximum restrictions, your phone needs to restart.
Reboot your phone? You will need to restart your phone after turning on MTE. The text includes messages like “MTE has not yet been implemented until reboot” and a prompt asking you to restart. It appears that Samsung is putting this option into the Auto Blocker app instead of hiding it in Developer Options, making it much easier for regular users to find.
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It is still not clear which devices will get this feature. Since MTE requires Arm v9 hardware, it’s highly likely that only new Samsung phones with the correct chipset will support it.
Samsung hasn’t made any official announcement yet, but user-facing text suggests that One UI 9 is the target.
⚠️ One tearing apk Helps to predict future features of a service based on work-in-progress code. However, it is possible that such predicted features may not make it to the public release.
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