Can the second-hand mobile phone data be fully recovered? No, you have to.

In the era of big data, almost everyone has a mobile phone. With the rapid development of mobile phone industry, people update their mobile phones faster and faster. Some people even have to change their mobile phones again within six months to keep up with the trend of the times. What will you do with your old mobile phone after you get a new one? Format the data and sell it to second-hand mobile phone buyers? Or go to the roadside stall and change a stainless steel basin?

Regarding the security of data and information, I believe most people will also consider that before selling second-hand mobile phones, they will definitely store them, whether it is telephone messages, video photos or application information. Or go to General-Restore-Erase all contents and settings. Some experienced users may brush a machine without information and then sell it with peace of mind. However, even if you do these operations, the information in your mobile phone can still be recovered! ! ! Recover! ! ! Reply! ! !

How is personal privacy leaked?

Recently, Ms. Zhang often receives calls from many friends: friends say that Ms. Zhang has been asking them for money. Although they all use their usual nicknames, the remittance account number, contact information and name are different. My friends hesitated and called to ask.

Ms. Zhang said she didn't borrow money! A friend asked her to think about when her personal information was leaked. After being reminded, Ms. Zhang realized that she had recently changed an Apple mobile phone, erased all the contents and settings of the old one and sold it to a second-hand mobile phone shop at the price of 300 yuan. 80% of the data was recovered.

Ms. Zhang quickly posted a message on several websites where she often logged in, saying that her mobile phone information was leaked and asked her friends not to remit money, and then reset the password of her website.

Searching online with "second-hand mobile phone information" and "disclosure" as the key words, we found that many netizens from all over the world posted posts about the disclosure of second-hand mobile phone information on platforms such as Weibo and forums. In addition to the "inside job" of second-hand mobile phone buyers and repairers, vendors who set up stalls to recycle second-hand mobile phones are even more menacing.

Why is the leakage of second-hand mobile phone information so rampant?

Why do these people want to restore user data? Why is the leakage of second-hand mobile phone information so rampant? First, the popularity of data recovery technology makes data recovery simple; The second is the huge demand for information.

Searching for "mobile phone data recovery" on a treasure, there are many services, all from 10 yuan, which are very powerful. For example, data loss caused by viruses, formatting, reloading the system, etc. Can be restored. The popularization of data recovery technology has greatly reduced the cost of obtaining mobile phone data.

Now there is a great demand for "information" in the market, especially accurate information such as mobile phone address book. Marketing promotion or telephone fraud are inseparable from these accurate information. Where there is demand, there is a market. Many people need this information, so many people will collect and sell information to obtain illegitimate interests.

Therefore, it is not the second-hand mobile phone itself that attracts repairers and vendors. They are more interested in "packaging and selling owner information". They packaged and sold the owner's information online for a dime, so as to make a profit, which led to serious disclosure of the owner's information. It can be said that if you can't handle your data well, no matter how you sell second-hand mobile phones, it's only a matter of time before your privacy leaks.

The research report shows that as of 20 17, the number of newly refurbished mobile phones in the global market has increased to1200,000, with a cumulative scale of more than 48 billion US dollars. The research institute Sino estimates that in 20 17 years, there will be about 30 million mobile phones recycled by C2B in the mobile phone market in China (excluding personal recycling and private transactions). With the increasing scale of the mobile phone market, users upgrade their mobile phones faster and faster, and the second-hand mobile phone market is also expanding.

Usually, the disclosure of privacy mainly occurs when the other party can unlock the power-on password with cracking software, and then invade the original registered email address of the mobile phone through virus software to check the privacy in the mobile phone, and even unlock and modify the password of iCloud to further obtain user information. Even if software developers improve the encryption ability of each software, experts can successfully obtain the information on the hard disk of the mobile phone by cracking the system password, and the owners who leaked the information all lost or sold their old mobile phones not long ago.

How to ensure the privacy and security of second-hand mobile phones?

It is not enough to completely and cleanly erase data with traditional solutions. In fact, securely erasing data may not be as simple as you think. In order to prevent mobile phone information from leaking, we usually need to solve it from two aspects: hardware security and software security. Hardware security is what the outside world calls using blisters or smashing mobile phones. However, the cost of this method is too high from the perspective of environmental protection and economy. The so-called software security means that users can completely empty all personal information through third-party software before selling their mobile phones in order to avoid privacy risks. Here is to introduce the anti-data recovery brush in the professional brush of AISI Assistant.

The brushing principle of AISI Assistant's anti-data recovery brushing machine is to format each storage unit of the hard disk chip in the mobile phone. Once you use AISI assistant's anti-data recovery brush, all the data in the mobile phone will be completely emptied, and no tool or method can recover it.

The methods to prevent AISI Assistant data recovery are as follows:

1. Download and install AISI Assistant on the computer first, and then connect the iPhone to the computer with the data cable.

2. In the download center, download the corresponding firmware.

3. After importing the corresponding firmware, check "Anti-data Recovery Brush", and then click "Brush Now" to pop up the prompt window of "Anti-data Recovery Brush Description": (It should be noted here that after importing the firmware, the device must enter DFU mode, and AISI Assistant's anti-data recovery brush can only be performed in DFU mode. )

4. If you choose to continue "data recovery to prevent brushing", brush the machine first and wait for the brushing to be completed; (The brushing process takes about 10 minutes)

5. After the device is restarted, the device hard disk will be deeply formatted automatically; (Remember not to unplug the device after brushing your teeth)

6. Wait for the hard disk of the formatting device to be completed, as shown in the figure: "The hard disk of the formatting device is completed, and all the residual data has been cleared!"

7. Click "Activate Now" to activate the device after the data recovery is completed. (Or check "Automatically activate the device after connection" before brushing your teeth)

It is precisely because this mode needs to be gridded into every storage unit, so if the storage capacity of the mobile phone is relatively large, the whole brushing speed will be very slow, and it will take several hours at most, but compared with security, I believe everyone will be very willing to do so!

In recent years, the state has also issued corresponding policies to crack down on the theft of user information, but we also need to raise security awareness to prevent criminals from taking advantage of it.