Buying an old iPhone is a popular savings choice. However, in addition to hardware risks, users also face the risk of data insecurity if they do not check the device carefully before using. From hidden iCloud accounts to spyware, these risks can lead to theft of personal information, bank accounts, and even remote tracking.
hidden iCloud: Silent threat
Many old iPhones are still linked to the iCloud account of the previous owner, warned Thomas Reed, Apples security director at Malwarebytes Labs (USA). If not completely removed, users can remotely lock the device at any time.
Therefore, before buying, users need to check the Settings > [username] section to ensure that their iCloud account is fully logged out. In addition, using the Find My iPhone feature to check if the device is locked or not iCloud is a mandatory operation.
Be careful with malware and interfered configurations
Although the iOS operating system is already famous for safety, for devices that have been released from the lock (jailbreak), the risk of having strange monitoring software and applications installed is completely real. Mr. Reed recommends that if you discover a strange application installation of unknown origin or showing signs of software interference, users should immediately restore the original installation and update it to the latest iOS.
Restore the settings and check IMEI
Immediately after purchasing the device, users should go to Settings > General settings > Transfer or reset the iPhone > Delete all content and settings to ensure the device is completely clear of old data. In addition, checking IMEI on Apple's official website (checkcoverage.apple.com) will help verify the genuine device and warranty status.
Tips when buying an old iPhone
Users should buy at reputable stores with a clear warranty. Avoid buying floating machines of unknown origin or unverified third-hand transactions. In addition, you should change the passwords of personal accounts after logging into the new device to enhance security.
With a few simple but necessary steps, users can completely rest assured to use the old iPhone without worrying about data theft or privacy affect.
