Google recently added a page in the Nexus support site that lists the new alerts the security system . According to the page, it is a system of Startup Scan that checks the integrity of the mobile device each time it is turned on. Users probably have not seen the warnings on their devices yet, but the Android M probably will bring with it new.
The alerts include three possible error messages associated with the startup checks. The first, which contains a yellow exclamation says “your device loaded a different operating system,” which means that the user has an unofficial ROM of some kind installed. If this was a user option, no problem.
The orange warning icon means that the device can not be verified by any corruption. This is because the bootloader is unlocked. The user can block it if you want, or simply ignore the message. Finally, there is the red symbol, which means “The device is corrupted. It is unreliable and can not function properly.” That at best can be the result of any changes made intentionally, but the verified boot system is not like that very much. And the worst is that something went terribly wrong.
These messages may disappear from your screen after 10 seconds, or you can press the button Power to dismiss immediately if it does not happen. And if you feel comfortable using the device after an alarming red message, you can choose to turn off the phone by pressing and holding the button until it turns off, and then enter the manufacturer to help restore the system.
The support page does not tell you more details about the technology used in alerts, but it is probably based on the dm-verity, which was added to Android in version 4.4. The addition of boot warnings seems to indicate that at least Nexus devices will have to start checking on the Android M.
No comments:
Post a Comment