What is the cause of Xiaomi smart lock vulnerability? We found several related reports on Baidu: 1. The quality of the product is not good, and the related equipment is broken. For example, broken bearings. 
2. Through intense pulse interference, the internal signal of the door lock is wrong, triggering unlocking. However, for excellent intelligent door locks, strict electromagnetic shielding is actually only the foundation of safety, but there are still a large number of door locks. It also shows from the side that the current level of intelligent door locks is uneven. 
3. In addition to the small black box, there is also a small iron that can be easily opened smart lock, which also makes consumers feel a cold sweat. Only one small iron is used to insert it into the gap of the door lock, just like opening the door and pressing the handle.
4. Smart lock there is also a deep hidden vulnerability, which is false mortice door lock. As shown in the preceding figure, false mortice door lock after the outer panel is pried off, the structure of the unlocking drive part of the lock body is completely exposed to the outside, at this time, you only need to directly pull the lock with items such as screwdriver or steel ruler, which can be said to be completely unprotected after the door lock is pried open to the front panel.
The following are some related reports:
Xiaomi smart lock can be opened without pressing fingerprints or losing passwords? Ms. Zhao of Ningbo was frightened
With the development of science and technology, more and more citizens and families begin to choose intelligent technology to enjoy the convenience brought by it. However, while technology brings surprises, occasionally there will be some situations. If the surprises are gone, the shock will come unexpectedly.
On july 15, ms zhao, who lives in a residential area in the southern business district, reported to the reporter that she bought the xiaomi smart door lock, and as a result, she put on the locked door without pressing fingerprints, if you enter a password, it can be opened at will. This scared Ms. Zhao very much.
I was afraid that the door was equipped with a smart door lock. After more than a month, I found that it had been "hidden"
On June 2, Ms Zhao bought a smart door lock in Xiaomi flagship store. After 6 days, the door lock was installed and started to use.
"There are old people at home. Sometimes I forget to bring the key when I go out. I just want to change the smart door lock. In case I forget to bring the key, it will not be so troublesome. The smart door lock sets fingerprints for the elderly to enter and exit the door, while others enter the password." As for the original intention of buying smart door locks, Ms Zhao said that she hoped to bring convenience to family members in and out. According to Ms. Zhao's memory, the price of this door lock is only over 1,000 yuan, which is not particularly expensive.
Last Saturday, my 6-year-old cousin came to Ms Zhao's home for a guest. The child was curious about the smart door lock and played there casually. Since my cousin didn't know the specific password, Ms. Zhao thought the door must not be opened at first. Unexpectedly, after a while, the door opened unexpectedly.
The door is about the safety of the whole family. Ms. Zhao attached great importance to it, so she tried it in all directions. This attempt found that the problem was big.
"I closed the door from the outside. According to the setting, I was not sure about the fingerprint. I couldn't open the door from the outside without pressing the right password. As a result, I turned up and down for several lower handle and the door opened from the outside. This means that as long as the family does not lock from the inside, any one can open the door of my house." This discovery scared Ms. Zhao into a cold sweat.
"That is to say, from the installation to the discovery last saturday, the door of my house has always been out of the condition of" false cover ". It is so shocking that it makes people afraid." Ms. Zhao felt very uneasy about this.
The after-sales service attitude is disappointing, and it takes the next day to report for repair
When the door lock problem was found at more than 3 o'clock in the afternoon, Ms. Zhao got in touch with the head office of Ningbo Xiaomi through the after-sales service of Xiaomi flagship store. Ms. Zhao hoped that the maintenance personnel could come to the door quickly to help repair it. However, the attitude of Xiaomi maintenance department made Ms. Zhao very dissatisfied.
The other party said that the number of maintenance Masters was originally small. Now the door lock is being installed in other places, and it will not be available for a while. Can you repair it one day later. "Then I certainly can't agree. If it is not repaired that day, the gate can be opened from the outside at any time. I will be scared for another night. The other side also asked me to strengthen the prevention by myself, saying that it would be OK to lock the door from the inside. At my repeated request, the maintenance personnel finally came to the door around 7 pm."
The maintenance master gave professional advice. It turned out that the bearing inside the door lock was broken, so the door lock was opened from the inside to the outside by default.
"Originally, I thought it was only more than a month since I bought the smart door lock, and it could be replaced. As a result, the maintenance worker told me that the replacement period was half a month, and it had already expired, so I could only replace the parts on site, these repairs are not charged." Ms. Zhao didn't have much entanglement either. She said she only hoped that the door lock would be repaired early and there would be no potential safety hazard.
To this end, the reporter contacted Xiaomi Ningbo maintenance customer service. The other party said that the number of smart lock installations they handled was not large at present. As for the problem of slow maintenance and handling reflected by ms. zhao, it was because all their repairs were reported to the door the next day. Because ms. zhao was in a hurry, she worked overtime to finish it.
"The door lock is not a plain product, and a failure may be an irreparable tragedy. Although this failure did not cause substantial consequences, Xiaomi's handling attitude towards the door lock failure made me very disappointed." At the end of the interview, Ms. Zhao repeatedly said.
After receiving the complaint from Ms. Zhao, the reporter searched the relevant information about Xiaomi smart door lock online. Only after this investigation did we find that the Xiaomi door lock had a lot of problems in 2019 alone. Xiaomi smart door lock suddenly broke down, the whole family of netizens was locked at home, the smart door lock of Xiaomi's brand opened automatically in the middle of the night, the motor rotation problem occurred inexplicably in Xiaomi MiJia smart door, and the problem was found less than one day after the installation of Xiaomi MiJia smart door lock was completed, customer service and maintenance sites push off each other. This kind of news is often seen in newspapers.
The reporter then interviewed Mr. Lv, an engineer of a technology company. It happened that the intelligent door lock of Xiaomi was also used in his home. "In my opinion, smart door locks are a trend of future development, and some situations are understandable." Engineer Lv said that smart door locks generally add control circuits based on the original mechanical lock, and can interact with mobile phone apps through connection methods such as Bluetooth, which is convenient for the elderly and children to use.
9th day of walking explosion: major security risks of Xiaomi smart door lock
Major security risks of Xiaomi smart door lock! On June 2, 2019, I bought a smart door lock at Taobao Xiaomi flagship store and used it after installation on June 8. On the afternoon of July 13, I accidentally found that this door lock does not require a password or fingerprint. Anyone can directly unlock it by pressing the door handle. It turns out that I have been in danger of no guarantee of life and property for more than a month, and I shudder when thinking about it. After my strong request for many times (xiaomi customer service only promised to go to the door to repair the next day regardless of the actual safety of my family), xiaomi after-sales agreed to go to the door to repair on the same day. The reason for the failure was that there was a quality problem in door lock parts. Xiaomi customer service believes that the product has passed the replacement period and can only replace the parts. It rejects my product replacement requirements and has no comforting explanation for the security risks I have suffered for such a long time. Door lock is not an ordinary product. A failure may be an irreparable tragedy. Although this door lock failure fortunately did not cause substantial personal injury to me and my family, however, the handling attitude of Xiaomi company towards this door lock failure made me very disappointed. I would like to remind those who intend to use Xiaomi products to think twice! Finally, I would like to thank God, thank Ningbo for its good public security and stable society. I haven't been stolen or robbed this month!
Xiaomi smart door lock opens quietly when no one is in the middle of the night customer service: it's not a lock problem
According to Mr. Zhang's memory, at about 21:42 that night, when the whole family had fallen asleep, the smart door lock at home suddenly opened by itself, and the whole family was awakened by the sound of unlocking. Mr. Zhang said that he installed smart lock of the products of Luke, a Mi Ecosystem enterprise, and only installed them on October 28 last year at a price of 1599 yuan.
Mr. Zhang said that according to the infrared sensor on the cat's eye, there was no one outside the door when the door lock was opened. The surveillance video they installed in the living room also showed that no one opened the door lock from the inside. Obviously, the problem must be the door lock.
However, the door-to-door master said that there was no problem with the door lock, and after contacting the sales customer service and the public relations staff of Beijing headquarters, the response was "no problem with the product". The public relations department said backwards and forth that they suspected that Mr. Zhang had not locked himself when he was lockable door, but just pressed down the handle, which was a normal state of ordinary lock lockable door.
Mr. Zhang said that the surveillance video in his home could prove that lockable door.
Xiaomi smart lock user: xiaomi smart lock feels good after being installed and used for 3 days, but today I suddenly found a problem. After holding down the knob in the house and locking it back, it can still be unlocked normally when using fingerprints outside the house, is the reverse lock meaningless? Administrators and members can unlock the lock normally. Do you want to know if this is normal? (At the beginning, I read the instructions that the anti-lock needs to be pressed lower knob, which is to prevent the child from being locked outside due to incorrect anti-lock), it is not clear whether there is a problem with the installation or the vulnerability of xiaomi smart door lock.
After carefully reading the instructions, the user read the APP management. The APP distinguishes the administrator from the ordinary unlocking account. All fingerprints under the administrator can be locked outside the door, in addition, the digital password set by the administrator, whether it is an ordinary user or an administrator, can open the reverse lock outside the door as long as you enter science. The fingerprint under the added ordinary unlocking user cannot be unlocked outside the door, indicating that the door has been locked backwards. In addition, the anti-lock button inside the door can only rotate to the right. (Door outside to door, door is right open)
For some users who encounter anti-lock problems with Xiaomi smart door locks, you can directly consult Xiaomi's official after-sales customer service. The customer service will send the door locks to the factory for inspection, and will also give users a satisfactory reply, users don't have to worry.
