Is the smart door lock really safe？ Most brand smart locks can be cracked by fake fingerprints.
Smart lock store in a shopping mall in Jinan
In recent years, smart door locks have gradually entered the public eye because of their safety and convenience. However, can these smart door locks really lock safely?
Not long ago, the China Consumers Association tested more than 20 smart door locks, and none of them were completely qualified. In Jinan, after investigating the smart door locks currently on the market in Jinan, the reporter found that many smart door locks such as Skye and Luke that failed the test are still on sale, and the price is high.
In addition, the safety of smart door locks is also questioned in the eyes of consumers.
In this regard, experts said that the living fingerprint identification function of a variety of smart door locks was easily cracked, and merchants were suspected of false propaganda and defrauding consumers. In addition, the core function of the smart door lock is limited in the fault state, and the security needs to be further enhanced.
There are many kinds of smart locks, and living fingerprint identification is expensive.
On August 14th, the reporter went to a smart door lock store on Shanda Road. According to merchants, at present, most of the smart door locks in the store are four-in-one, passwords, key cards, fingerprints and keys can be used, and the price ranges from 800 yuan to more than 3,000 yuan.
"There are two kinds of fingerprint unlocking, one of which is optical recognition." The merchant told reporters that this technology rose earlier, which is equivalent to "photographing". It collects the surface texture image of the fingerprint through the reflection of light, so it is only necessary to take a photo of the fingerprint and then put it on the fingerprint lock to identify it.
In addition to optical identification, the other is a semiconductor fingerprint head, which can identify biological temperature, and its safety and sensitivity are better than optical identification. When asked whether the door card will be copied, the merchant said that if the card is not lost, it will not be copied. If it is lost, the lock should be restored to the factory settings immediately, and the previous card will become an invalid card.
In the Luke smart door lock store on Beiyuan Street, the merchant said that fingerprint unlocking has now been upgraded to the third generation, that is, a number of living fingerprint identification smart door locks. At present, this smart lock is the main product in the store, which combines optical detection technology and semiconductor capacitance fingerprint identification technology to verify the user’s fingerprint information by extracting multi-dimensional biometric signals such as fingerprint, skin and blood, so as to identify and reject fake fingerprints.
"This kind of lock is more expensive than smart locks for optical identification and semiconductor fingerprint identification, and the price generally ranges from 2,000 to 5,000 yuan."
The merchant told the reporter that the price of the lock is more expensive because of its strong protection.
"NFC function is the latest addition." Merchants told reporters that NFC is a separate button and needs to be purchased separately. This kind of fingerprint is mainly aimed at consumers whose fingerprints are not obvious, such as the elderly, whose fingerprints are particularly worn, or the children of three or four years old, whose fingerprints have not yet grown up.
It is understood that at present, in Jinan, the smart door lock brands sold in the market mainly include Skye, Luke and Luxing.
In the comparative test report of smart door locks released by China Consumers Association in May this year, more than 20 smart door locks were tested, and none of them were completely qualified. Among them, brands such as Skye and Luke are involved, but these brands are still on sale in Jinan.
The safety of smart locks unlocking themselves in the middle of the night is questioned by consumers.
As smart door locks are more and more accepted by the public, negative news about smart door locks is also common. The reporter searched from the "black cat complaint" network platform and found that there were 36 complaints about smart door locks, of which quality problems accounted for more than half.
In addition, according to public media reports, a strange thing happened at Mr. Zhang’s home in Qingdao. One night, the door of his home was suddenly opened. In panic, Mr. Zhang chose the police for the first time.
However, the monitoring shows that there is no one at Mr. Zhang’s door. After many investigations, it was found that his smart door lock was opened by himself. It is reported that the door lock was purchased by Mr. Zhang for 1599 yuan in October 2018, and it took more than half a year.
In a smart door lock shop in Zhuanshan West Road, Jinan, the reporter met Ms. Su who was going to buy a smart door lock. "I think the smart door lock is safer than the ordinary door lock. This kind of smart door lock is quite advanced, and it is not easy for thieves to open it." Ms. Su told reporters that she is now more worried about whether this smart lock will be broken, and if it is broken, it will be more troublesome to repair.
"This smart door lock has been bought for less than half a year. At the beginning, it was just to decorate the house. It is very convenient to see this lock in the home square without a key. Because the security measures in my community are quite good, I need an induction card to enter the community and an induction card to take the elevator, so I am not too worried about security issues. " Ms. Liu of Jinan told the reporter that she bought a smart door lock to value the convenience of this door lock.
"Used for several years, very convenient. However, there was also a fault, and even the physical door lock could not be opened. Later, it was opened after the sale. " Mr. He, who also uses smart door locks, told reporters that because of this failure, he felt that the security of smart door locks was unreliable and changed the smart door locks at home back to traditional door locks.
In addition, some consumers report that the smart door locks in their homes always call the police inexplicably, which adds a lot of trouble to his life.
Living fingerprint lock "can’t be locked" under the fault state of "nominal"
In recent years, whether the smart door lock is safe has been a hot topic.
At the end of 2018, the State Administration of Markets conducted risk monitoring on 40 smart door locks, and 25% of the sample fingerprint identification functions had security risks. In May this year, China Consumers Association conducted a comparative test on 29 mainstream smart door lock products. The results showed that 48.3% of the samples had security risks when passwords were opened, 50% of the samples had security risks when fingerprints were opened, and 85% of the samples had security risks when information identification cards were opened. In this regard, Luo Gang, deputy secretary general of Beijing Consumers Association, said that when smart lock merchants promote their fingerprint unlocking technology, they will mostly emphasize the living biometric unlocking technology, and they will also claim that this technology can prevent fake fingerprints from unlocking. However, after testing, many products in the sample smart lock can be easily cracked, which is inconsistent with the statement made by the merchants during the publicity, and is suspected of false propaganda and deceiving consumers.
Previously, CCTV reported on the comparative tests of smart door locks by consumers’ associations in Beijing, Tianjin and Hebei, among which there was an abnormal circuit test of smart door locks. According to the inspector, this test is to monitor whether the smart door lock can still maintain its core functions and unlock and lock under abnormal working conditions.
However, the test results are not satisfactory, and many mainstream smart locks have abnormal locking or unlocking under abnormal working conditions.
In this regard, Luo Gang said that if there is a glitch in the smart door lock in daily life, it should not affect his core functions, which also proves that the security of the smart door lock needs to be further strengthened and its reliability is poor. (Text/Photo Reporter Ding Yifan Intern Wu Youjun)