Most iPhone users have experienced it at least once. You pick up your phone after it has been sitting unused for a few days, only to discover that it has restarted itself and is asking for your passcode before Face ID or Touch ID will work again. At first glance, it may seem like an inconvenience or a software glitch. In reality, it is one of Apple's most effective security features one that has quietly made life much harder for forensic companies and cybercriminals attempting to break into locked iPhones. Unlike flashy security features that Apple advertises during product launches, this automatic reboot mechanism works silently in the background. It exists for one reason: to protect the encryption keys that keep your personal information secure.
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