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Unlocking the bootloader allows installing and running unsigned code on a device, including user customized software. Operating outside the manufacturer specification might usually result in voiding any warranties and may make the device susceptible to data theft, as the integrity of the operating system (as intended by the manufacturer) can no longer be guaranteed. [1]
If the wrong PIN is entered more than three times, the SIM card will become locked. It can be unlocked by entering the PUK code provided by the mobile service provider, [ 1 ] which may be available on the SIM card's packaging, the contract, or provided by customer service after identity verification.
There are online services that will provide an IMEI unlocking service for DCT4 and DCT3 Nokia mobile phones. [citation needed] This method of unlock requires the user to know which carrier the mobile phone is locked to, and also needs to provide an IMEI. Generally, older model Nokia unlock codes are free and instantly retrievable by these services.
However, a phone's IMEI may be easy to change with special tools. [10] [better source needed] In addition, IMEI is an un-authenticated mobile identifier (as opposed to IMSI, which is routinely authenticated by home and serving mobile networks.) Using a spoofed IMEI can thwart some efforts to track handsets, or target handsets for lawful intercept.
It is Role Base Access Control (RBAC) feature which is responsible for access level provisioning for the users. When doing critical self-service password resets for privileged accounts you may want to allow account unlocks and to restrict password change functionality. The support teams have a responsibility of changing passwords of these accounts.
One night Na-mi loses her smartphone on the bus and it's picked up by Oh Jun-yeong, who uses a fake voice app to arrange for Na-mi to pick up her phone at a repair shop the next day. At the repair shop, a masked Jun-yeong fixes Na-mi's broken phone screen and gets the password from her in order to install spyware on her phone and clone it.