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If you didn't give him your passcode or otherwise grant permission and you didn't leave it lying around unlocked and the screen on, then it's a legit issue. Reduce anyone's temptation to take a casual glance by making sure you're already taking basic privacy measures, Judge Keith Cutler says. Change your passcode and passwords and remove notifications from your lock screen.

Read deeply and understand the nuances. 否则会被别人忽悠