Data can still be recovered after clearing. Changing your phone is more terrible than losing it.
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Smartphones are becoming more and more powerful. Before we know it, social accounts, friends and family information, online banking, payment passwords, and all kinds of data related to our personal private information and economic interests are all concentrated in the few inches of our hands. Once upon a time, the outbreak of mobile phone password cracking, mobile phone fraud, and various "gate" incidents made "losing a mobile phone" a shocking thing. Little do we know that now electronic products are developing rapidly, and many people even change their mobile phones every year. Even if all kinds of data are cleared, reselling old mobile phones is still risky. Sometimes, changing mobile phones is more terrible than losing them. Conventional means cannot really clear data. According to the "China Mobile Phone User Replacement Risk Survey Report" released by the domestic security agency 360, it is expected that 220 million Android mobile phone users will change their mobile phones in 2014. The survey results show that a large number of mobile phone users simply delete the information. Although more than 50% of users will choose to "directly restore factory settings" when dealing with old mobile phones, experts revealed that this "seemingly the safest" method cannot completely clear mobile phone data. The ten key privacy data that users are most concerned about, such as photos, videos, text messages, address books, WeChat accounts, Alipay accounts, call records, emails, chat records, and Weibo accounts, are all stored in the flash memory components of mobile phones for a long time. Ordinary deletion or factory reset can only make these data not display in normal operations, and cannot really erase the traces of these information in the storage medium. Given the storage rules of smart phones, especially Android phones, new data will first occupy unused storage space, which further prolongs the existence cycle of personal sensitive information in the device. Now, online platforms and some electronic product stores have begun to openly carry out mobile phone deleted data recovery services without user identity proof. On shopping websites such as Taobao, a computer software that can recover data only costs 10 to 30 yuan. If the user's old mobile phone is only deleted or restored to factory settings and then sold to others, if criminals use special means to reproduce the private information that once remained in the mobile phone, the personal loss caused to the original user will be immeasurable. How to make the old mobile phone more secure to sell? According to 360 security experts, in theory, as long as the information on the phone is not overwritten, the deleted information can be restored. Even if you use the "factory reset" function that comes with the phone, you cannot completely delete all the information. And the "flash" and "redo the base package" of Android phones, which completely change the system layer, cannot really achieve the purpose of changing the storage structure of the phone, and cannot really clear the user's personal information. Therefore, for ordinary users, before selling the old phone, repeatedly import some large files that do not contain personal information into the mobile phone flash memory, and then perform the "factory reset" operation on the phone, which can overwrite the original data that originally remained in the mobile phone flash memory with a high probability, effectively reducing the risk of data recovery. In order to simplify the tedious operations of Android smartphone users to ensure safety when changing phones, at the media communication meeting on the "changing phone" issue held on April 14, 360 Mobile Assistant released the first mobile phone software to solve the problem of changing phones - 360 Safe Switching, in order to help users solve the troubles caused by changing phones. It is more reliable for iPhone users to clear data than Android users because the iOS system has a "data smear" function that can overwrite the phone's flash memory space with useless data, and 360 Safe Switch has also applied this function to the Android system, minimizing the possibility of data being recovered after the user's phone is transferred. At the same time, the software can also use the self-built WIFI Direct technology between mobile phones to transmit contacts, text messages and other mobile communication data point-to-point, and can even transfer and save game progress on different devices without connecting to other servers in the cloud, making other aspects of "changing phones" safer. Whether it is using powerful means to clear data from old mobile phones, or using the "Safe Switch" software to simply and effectively protect the safety of changing phones, in an era when smart terminal devices are becoming an increasingly inseparable part of our personal lives, always maintaining a high level of information security awareness is the first step for each of us to use our phones with peace of mind. As a winner of Toutiao's Qingyun Plan and Baijiahao's Bai+ Plan, the 2019 Baidu Digital Author of the Year, the Baijiahao's Most Popular Author in the Technology Field, the 2019 Sogou Technology and Culture Author, and the 2021 Baijiahao Quarterly Influential Creator, he has won many awards, including the 2013 Sohu Best Industry Media Person, the 2015 China New Media Entrepreneurship Competition Beijing Third Place, the 2015 Guangmang Experience Award, the 2015 China New Media Entrepreneurship Competition Finals Third Place, and the 2018 Baidu Dynamic Annual Powerful Celebrity. |
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