In the era of mobile Internet, mobile phones have become a must-have item for people, and the speed of switching is also very fast. As a result, a large number of old mobile phones have been generated. According to reports, more than 90% of people have at least one old mobile phone in their homes. Mobile phones, many choose to sell, can this be really safe, will not cause privacy leaks? China News reporter conducted an interview and investigation.
A mobile phone recycling machine, detection needs to completely open the data call permissions
Sell discarded mobile phones with caution
According to a recent report released by the second-hand e-commerce platform, a survey conducted by tens of thousands of respondents found that 92.5% of the respondents indicated that they had at least one old mobile phone at home. Among them, many people chose to sell used phones. This market is very big. Research firm IDC research predicts that by 2020, second-hand mobile phone sales will climb to 222.6 million units, with a compound annual growth rate of 22.3%.
Because a lot of old mobile phones contain personal privacy information of users, some people started to do business in this area. Recently, the "Beijing News" reported that there are second-hand mobile phone vendors on the Internet 1 cent to sell the owner's Personal privacy information.
The reporter found in the investigation that the current recycling of mobile phones is mixed. For example, on a second-hand mobile phone recycling machine, a reporter test found that the detection of the mobile phone needs to insert a data cable. After the iPhone is connected, it needs to 'trust the computer', and the Android phone needs to open the 'USB debugging mode. This means that the phone's stored permissions should be released for this machine.
This will not cause the user's privacy leak? The above-mentioned machine staff told reporters that the machine just do some hardware testing, will not copy or call the user's storage information, 'This can only be mutual trust.'
In addition, there are some recycling services that need to be sent to the mobile phone for evaluation in the past. If you feel unreasonable and return it to you, you cannot know what others have done to your mobile phone.
Earlier, a number of media reported that in some places such as train stations, there were some self-charging devices. After use, mobile phones were forcibly installed with a variety of APPs. It can be seen that the risk of privacy theft is greatly increased after the mobile phone rights are acquired. improve.
In the era of mobile Internet, travelers are holding mobile phones to pass the time
'Restore' phone factory settings fly it?
Some netizens believe that before they plan to sell their mobile phones, they will delete personal information and then restore the factory settings. Is this true?
There are second-hand mobile phone recycling websites that show, 'the data provided through the iPhone official erase and settings may be recovered is almost zero; Android phones they will conduct data shredding to ensure the safety of user data.'
The reporter contacted the relevant staff of Apple. After erasing the data on the iPhone, it was possible to recover with some software. As of this writing, no reply was received.
However, it is understood that many mobile phone repair shops on the market currently have data recovery services, and the Internet is also flooded with a large amount of data recovery software. These services claim that even if you remove the data from your mobile phone, some of the data can still be recovered.
For example, in Apple Recovery Master's official website display, its software can be 'fool' operation, speed recovery SMS, contacts, memos, photos, call logs, calendars, reminders and other types of iOS data.
Although the Apple Recovery Master Developer stated that to use the software, it must have the authority to unlock the mobile phone. However, if it is a second-hand mobile phone bought, obviously, it is only natural to obtain its permission.
A staff member familiar with IT technology told the China Newcom reporter that whether it was a PC or a mobile phone, the deleted data part could be recovered. 'Not a new technology, it was a few years ago.'
Online mobile data recovery software
How to deal with old mobile phones?
Selling mobile phones without them is a good thing for the reuse of resources. However, for the sake of data security, try not to discard or sell them. If you really want to sell, these pre-operations may be helpful to you.
First, remove the memory card (no memory card phone can ignore this point), and then delete all personal information, including account number, address book, SMS, photos, videos, etc., restore phone factory settings.
The most important step is to deposit a large number of indifferent movies or music resources on the mobile phone, confirm that the mobile phone space is completely filled, and cover it several times repeatedly. In this way, even if the data is subsequently recovered, it may not be the top layer in the storage. The data.