Step 1: Locate your phone using Find My iPhone (iCloud.com) or Find My Device (google.com/android/find). Step 2: Remotely lock it. Step 3: Call your carrier to suspend the line. Step 4: Change passwords for Google/Apple ID, LINE, SNS, and banking. Step 5: File a lost property report at the nearest police station.
Always enable screen lock, turn on Find My Phone, set a SIM PIN, and back up data to the cloud.
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Suspending the line stops calls and SMS, but LINE messages may be accessible via Wi-Fi on another device. Prioritize changing your LINE password to prevent account hijacking.
Immediately contact your carrier to suspend the line and change your Google/Apple ID password. Even without remote lock, you can remotely erase (factory reset) the device.
First, contact your carrier to reactivate the line. Then check for any unfamiliar apps and change your passwords again as a precaution. If there are signs the phone was tampered with, run a security scan or consider a factory reset.
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