將手機恢復出廠設置，刪除相關內容和軟件后，出售自己的舊手機到底靠譜嗎？

After restoring the phone to factory settings and deleting related content and software, is it reliable to sell your old phone?

　　“傳統(tǒng)的電腦和如今的智能手機，信息存儲的原理和規(guī)則基本一致，簡單的恢復出廠設置和刪除文件，并不代表徹底刪除了信息。”網絡安全專家、奇安信行業(yè)安全研究中心主任裴智勇表示，手機上“刪除”文件，其實系統(tǒng)只是將該文件的指示路徑刪除，等于一般人找不到該文件了，然而實質的內容信息依然存儲于手機內部。

"Traditional computers and today's smart phones have basically the same principles and rules for information storage. Simply restoring factory settings and deleting files does not mean that information is completely deleted." Pei Zhiyong, a cyber security expert and director of the Qi'anxin Industry Security Research Center Said that "deleting" a file on the mobile phone, in fact, the system only deletes the indicated path of the file, which means that the average person cannot find the file, but the actual content information is still stored inside the mobile phone.

　　“所以，想恢復手機之前的存儲內容信息，是可以做到的，而且技術門檻不高。”裴智勇坦言，目前在一些不正規(guī)的二手手機回收店，有人會通過這種方式，來恢復手機里的儲存信息，比如，手機通訊錄、短信等涉及個人信息的內容，再將其進行二次售賣，賺取暴利。

"Therefore, it is possible to restore the previous storage content information of the mobile phone, and the technical threshold is not high." Pei Zhiyong admitted frankly that at present in some informal second-hand mobile phone recycling shops, some people will use this method to restore the mobile phone. The stored information in the mobile phone, for example, mobile phone address book, short message and other personal information content, and then sell it for a second time to make huge profits.

　　業(yè)內專家認為，當前，二手手機已成為個人信息泄露的源頭之一，形成了一條成熟的灰色產業(yè)鏈條，從中獲取的個人信息，可能會被用于垃圾電話、短信乃至電信詐騙。

Industry experts believe that at present, second-hand mobile phones have become one of the sources of personal information leakage, forming a mature gray industrial chain. Personal information obtained from them may be used for spam calls, text messages, and even telecom fraud.

過時電子產品回收再利用是大勢所趨。那么問題來了，我們如何才能在保障信息安全的前提下出售、回收自己的舊手機？

Recycling of obsolete electronic products is a general trend. So the question is, how can we sell and recycle our old mobile phones on the premise of ensuring information security?

　　裴智勇建議，首先，舊手機出售盡量到大平臺、大型店里進行，盡量避免通過個人渠道或小店。其次，舊手機換下來后，不要著急出售，出售前除了恢復出廠設置、刪除老舊文件外，可以選擇下載“文件粉碎”類軟件，對淘汰手機、電腦進行重復覆蓋、復寫處理。

Pei Zhiyong suggested that, first of all, the sale of old mobile phones should be carried out on large platforms and large stores as much as possible, and try to avoid personal channels or small stores. Secondly, after replacing the old mobile phone, do not rush to sell it. In addition to restoring factory settings and deleting old files, you can choose to download "file shredding" software to overwrite and rewrite the eliminated mobile phones and computers.

　　“用戶可將手機連接至電腦，先將手機內容全部刪除，再向手機內寫入新的大型文件，反復進行幾遍，盡量將其空間占滿。”裴智勇說，這樣基本就可以保證舊手機內的個人信息和痕跡被徹底清除。

"The user can connect the phone to the computer, delete all the contents of the phone first, and then write a new large file into the phone, repeat it several times, and try to fill the space as much as possible.” Pei Zhiyong said, this basically guarantees the old Personal information and traces in the mobile phone were completely erased.

　　專家建議，手機上盡量不保存敏感、秘密信息，重要信息保存使用后應盡快刪除掉，其后經過多次數(shù)據(jù)覆蓋，數(shù)據(jù)被恢復的幾率也將大大降低。

Experts suggest that sensitive and secret information should not be stored on the mobile phone as much as possible. Important information should be deleted as soon as possible after storage and use. After multiple data coverage, the probability of data recovery will be greatly reduced.

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