No backup restore photo not easy "fruit powder" don't worry too much

There is a story about the restoration of photos, a female consumer to repair the iphone, the deleted topless was repaired by the repair workers and caused by the spread, the photo leaks in life seems to not be a rare thing, therefore, this also caused the "fruit powder" panic. However, after the reporter to the data repair experts understand that the recovery of deleted photos of smartphones is very technical difficulty, as for the Apple phone, due to its special encryption mode, "deleted photos if there is no backup, it should be said that can not recover." ”

You can't recover if you don't.

In response to the deletion of Apple's mobile photos, the reporter called Apple's official customer service phone, with several technical support staff communication, each other said that the photos taken with the mobile phone has been deleted, only in the state of the backup has the opportunity to regain, otherwise the words can not recover.

Reporter visited some mobile phone repair points in Shanghai, the clerk's reply is the same: "You do not back up, we can not recover, because there is no relevant software." ”

According to the introduction, IOS 5.0 System version of the iphone if the "Enable photo streaming" option is turned on in the icloud settings, the phone will automatically back up the photos taken to the cloud without any other options. Even if the phone deleted the photos, as long as their own account name login, can also be downloaded from the icloud.

Another way is to back up photos on your phone from itunes to your computer, but you don't have to worry about it if you need to connect to the computer that you originally backed up to restore the photos, and only provide the phone to the repair staff. As a result, several data recovery people have told reporters: "The woman's nude photo if the recovery, analysis of the only possibility is that the phone automatically stored user name, password, the maintenance staff through the icloud download." “

Special encryption module plays a protective role

Why is it difficult to recover the photos of the iphone? Beijing North Asia Data Recovery Center chief engineer Zhang Yu told reporters that the main reason is that Apple uses the encryption module.

The safety of the iphone is relatively better because it is easier to read the information on the Android phone, but the iphone can't plug in the memory card, Zhang explained.

If the file is stored on the phone, then the smartphone data recovery is more difficult relative to the PC, whether the Android or the Apple phone has a strict user rights set. Zhang said that some ordinary maintenance staff may try to "unlock" the Android and the iphone by brushing root and jailbreak, respectively, to circumvent the application's protective layer, "but this may change the state of the phone and cause data corruption." ”

Even if the data is taken out, if the Android phone can be used directly, and the Apple phone is not, the extracted data is still encrypted. On the iphone 3GS phone, Apple has loaded the hard encryption module: First the user set up the operation of the password is sent to the hard encryption module, the latter produces a new password, this password and each file with different size, time, location and other information combined to more complex mode of operation to form the final password.

"For files exported from the phone, you can use the most advanced software to compute the final password after the three-tier encryption." Things like this, ordinary mobile phone repair points can not be done. If you really need, you may be able to buy some of the recovery software abroad, but those software to tens of thousands of dollars. "Zhang Yu introduced.

If the file is deleted, the random key that is unique to the file is deleted, and the final password cannot be calculated to render the file again.

Visible, if you are not a star, people, even if the loss of the iphone will not be a very expensive and energetic way to deliberately export the data. In the active maintenance, in addition to remove sensitive data, do not forget to strengthen the backup function in advance of the understanding and attention to technical knowledge.