Second-hand mobile phones can be restored to factory settings. Will selling second-hand mobile phones lead to the disclosure of personal information?

With the development of the times, from the initial 2G, 3G and 4G mobile phones to the current 5G mobile phones, the update speed of smart phones is particularly fast, so some users change their mobile phones very quickly. When replacing mobile phones, some idle mobile phones will be sold to the second-hand mobile phone market. Although most people will restore the factory settings when selling old mobile phones, can restoring the factory settings completely delete the data? According to relevant sources, even if the second-hand mobile phone is restored to the factory setting data, it can still be restored, and perhaps your personal privacy will be leaked unconsciously.

Will selling second-hand mobile phones lead to the disclosure of personal information? It is reported that many merchants on the online trading platform use a terminal device called forensics system, which can completely obtain the data existing, hidden and deleted in the mobile phone, and even if the mobile phone is emptied and restored to the factory settings, the data can be recovered.

According to the survey, many citizens don't know much about the situation that second-hand mobile phones can be restored to factory settings. Most people think that the mobile phone has completely cleaned up all the information in it when it is sold. In fact, this deletion method can't guarantee that all the information is safe, and it is also possible to retrieve all the data in the mobile phone through some special technologies, so selling second-hand mobile phones will cause the disclosure of personal information.

How can we ensure that information can be thoroughly cleaned up? 1. When selling a mobile phone to a merchant, you must ask the merchant to restore the factory settings in person, so as to completely clean up all the data in the mobile phone and protect your private information.

2. When selling old mobile phones, you want to clear your information more safely and thoroughly. After restoring the factory settings, you can refill the phone memory with some useless pictures or words, and then restore the factory settings repeatedly. This operation can completely erase the information in the mobile phone and make personal information better protected. Even if the mobile phone is sold, even if the merchant can retrieve the data in the mobile phone, it is just some useless pictures or words.

3. When the mobile phone can't be turned on normally, it's best to log in the ID account of the mobile phone with a computer, then use the computer to find out all the information in the mobile phone, and erase all the information in the mobile phone through the account lock in the mobile phone, so that even if the mobile phone is sold to a merchant, the information in the mobile phone has been erased after the merchant repairs it.

I would like to remind you that when dealing with old mobile phones, it is best to completely remove all the information in the mobile phone to avoid personal privacy being leaked. In addition, some old mobile phones should not be thrown around, let alone sold to vendors who collect second-hand mobile phones outside. For unused mobile phones, it is best to delete personal information as completely as possible. If personal information is leaked and falls into the hands of criminals, the consequences will be unimaginable.