WhatsApp sends a authentication code via a call. Android doesn’t block calls with a locked screen

WhatsApp (and many other services) has the option to receive the login code through a phone call.
Steps:

attempt to log into WhatsApp on another phone with your number
click on the button saying you didn’t get the number on your WhatsApp … Continue reading WhatsApp sends a authentication code via a call. Android doesn’t block calls with a locked screen

Can I prevent thieves from unlocking Android’s bootloader?

I know that anything can be exploited. But let’s say I want to prevent thieves that do not have access to not openly available exploits, to reset my phone so he can sell.

If no openly available exploits exist, then he’d be left with the options of factory resetting (which I opened a question about here: Is Android’s system recovery a firmware thing or Android thing? Can factory reset be prevented?) or flashing a brand new Android.

Is there a way I can prevent him of flashing a new OS at all? This, combined with not being able to factory reset, would render the phone useless (unless he sells its parts).

Continue reading Can I prevent thieves from unlocking Android’s bootloader?

Is Android’s system recovery a firmware thing or Android thing? Can factory reset be prevented?

I’m researching on how to protect my phone from being able to be reseted by thieves. Doing some research online I figured out that the main method of putting a stolen phone to work again is to do a factory reset through rebooting and using… Continue reading Is Android’s system recovery a firmware thing or Android thing? Can factory reset be prevented?