Apple has quietly changed a policy that has resulted in iPhone and iPad owners having to more frequently enter passwords to unlock their devices.Users must now enter a passcode anytime the device’s Touch ID fingerprint sensor hasn’t been used in the past eight hours or when the device hasn’t been unlocked with a passcode in the last six days. In such cases, Touch ID is turned off until users enter passcodes.Apple-tracking site Macworld noted the little-noticed change and investigated the reason behind it. It found users who claimed that Apple’s passcode requests had become increasingly frequent.Apple has long required that...