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why dont manufacturers add bootloader password/encryption to prevent theif just resting or flashing phone

aqarwaen29

Unlocking the bootloader and/or the recovery is very popular discussion across many devices. But doing so exposes a very obvious and inevitable issue with security!

 

An unlocked recovery means that no matter how secure you make your android lock screen, someone can easily reset phone to restore the phone to a fully functional (and lockless/insecure) state and the worst part, they don't have to erase your data(meaning they can access all your personal files and folders)!

 

It is almost hilarious! In fact if the phone supports insertion of external SD cards, you can even flash your own software into the phone and maybe bypass the lock screen without wiping any data.

 

For example: One possible loophole is using the 'Tasker' app which has a feature that can temporarily disable the keyguard. And the best part is that Tasker can be flashed using the recovery!

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The problem is not that there is a lock. The problem is that you, as the device owner, do not have the key.

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1 minute ago, aqarwaen29 said:

An unlocked recovery means that no matter how secure you make your android lock screen, someone can easily reset phone to restore the phone to a fully functional (and lockless/insecure) state and the worst part, they don't have to erase your data(meaning they can access all your personal files and folders)!

Even with locked loaders you can do that. Doesn't really matter if there is money to be made people will find a way around it.

 

 

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If you unlock the bootloader, you should already be aware of the security implications.  On quite a few devices I've owned now, flashing a custom ROM relocking the bootloader was possible if done correctly. So it's not like customizing your device and a locked bootloader are completely incompatible. 

 

Either way on many devices it doesn't stop someone from just using a flashing tool from wiping the device, and putting it back to factory firmware.

 

There's always a way around it. Think about it, does a BIOS password protect your laptop? You might be able to help protect the data to some degree, but once some has physical access to the device, all bets are off. 

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