Face recognition is in crisis again?American AI company tricked WeChat and Alipay with 3D masks

On December 15, according to the US “Fortune” magazine, Kneron, an artificial intelligence company in San Diego, USA, used a special 3D mask to successfully deceive many face recognition payment systems, including Alipay and WeChat, to complete the shopping payment procedure. . The team also claimed that they even entered a Chinese train station in the same way.

The wheels of the times are rolling forward, and science and technology are constantly advancing. As far as the eye can see, everything that can be seen is the result of the essence of human science and technology. However, with the continuous development of technology, some disadvantages brought by technology have gradually emerged.

Liu Juncheng, chief executive of Kneron, said that this shows that facial recognition technology does not meet security standards, which will pose a threat to user privacy.

Founded in 2015, Kneron is a terminal artificial intelligence solution manufacturer that designs and develops software and hardware integration. Earlier, they also announced the completion of a $18 million A1 round of financing led by Li Ka-shing’s Victoria Harbour Investments.

Kneron’s core technology is to develop a high-efficiency, low-power-consumption neural network chip (Neural Processing Unit, NPU), which transfers artificial intelligence from the cloud to the terminal device, performs real-time identification and judgment analysis, and develops artificial intelligence for different applications. level of possibility.

Based on the size of the startup and its products, it might be reasonable to guess that the “trial” was a marketing PR exercise. Even so, if it is true as they claim, then all kinds of facial recognition applications do need to cause users to be wary.

Previously, there were also some related incidents about the cracking of face-scanning payment.

In October of this year, the science team of Class 402 of Jiaxing SISU Xiuzhou Foreign Language School broke the news that they found in an extracurricular scientific experiment that just using a printed photo can replace a real person to brush their face and fool the Fengchao smart cabinet in the community. The parent’s shipment was taken out.

After that, Fengchao urgently went offline to “brush face to pick up”, and also responded on the official Weibo:

Regarding the pickup feedback received recently, it has been verified that the app is a beta version for trial operation and is undergoing small-scale testing. After receiving some user-friendly feedback, it has been offline for the first time. After improvement, you can pay attention to Fengchao’s announcement. Thank you all for your support and encouragement.

Face recognition is in crisis again?American AI company tricked WeChat and Alipay with 3D masks

It is reported that the current face recognition technology can be divided into two categories: based on 2D face image and based on 3D face image. When the Fengchao Express Cabinet camera collects a face, it only forms a 2D plane image, which is equivalent to a photo.

2D face recognition only uses a 2D camera to capture plane images, so even if the algorithm and software are more advanced, with limited information, the security level is not high enough, and it is easy to be cracked with photos.

So, some people ask, is the face-swiping payment of WeChat and Alipay, which are more common in life, safe?

It is a very unlikely event that there are risks and hidden dangers such as account fraud and fraud in WeChat face-swiping payment. If the account funds are lost due to face-swiping payment, you can also apply for full compensation.

When Alipay’s previous AI face-changing app “ZAO” caused risks of infringement, privacy security and information security, it responded: Alipay’s “face-swiping payment” uses 3D face recognition technology, and there are many kinds of face-changing software, but No matter how realistic the replacement is, it is impossible to break through the face payment.

On the one hand, the relevant parties insist that the security of the technology is beyond doubt; on the other hand, Kneron claims to have fooled the system with a special 3D mask.

At present, the matter is being further fermented, and WeChat and Alipay have not yet responded to the matter.

In fact, it is extremely difficult to make such a 3D mask, not to mention the high price and the extremely complicated procedure.

According to previous reports from the mobile payment network, before making a 3D mask, a high-precision 3D scanner needs to be used to scan the person to obtain three-dimensional data; secondly, a high-precision 3D printer needs to be used to print the main structure of the human head; Importantly, millimeter-level restoration of facial features is required, including a high degree of restoration of skin tones.

On the device side, if the user has enabled face-scanning payment, if they want to use other mobile phones for face recognition payment and transfer, they must use the payment password to re-enable face-scanning payment before proceeding. In addition, when using another mobile phone to log in, you also need to perform login authentication, that is, you need a login password.

That is to say, if you want to use a 3D mask for stealing, you must meet several harsh conditions at the same time:

1. Collect high-precision 3D models of Alipay users’ heads;

2. Complete the production of millimeter-level precision masks regardless of the cost, and strive for perfection;

3. Obtain the user’s mobile phone when the Alipay user has activated face-scanning payment, or directly obtain the Alipay user’s login password and payment password.

Obviously, in actual operation, this method of stealing and brushing is not operable.

However, Kneron also admitted that the use of 3D masks is unlikely to be widely used because the masks used by Kneron are produced by Japanese professional mask manufacturers, which are very realistic and expensive. But Kneron also pointed out that the technology can be used to deceive famous or rich people.

People are always afraid of the unknown, but they cannot escape their temptation, because people are greedy.

But we must always believe that the emergence and development of every technology is a good intention at first, and perhaps the purpose of human application of technology has changed the development of technology. But technology itself is not wrong. We cannot give up food because of choking. The positive effects of technology still outweigh the negative effects.

Just like face recognition, this technology has taken root and has brought people infinite convenience and excellent experience. A hundred years ago, no one would have imagined the level of technological development today.

For AI technology, including face recognition, we should probably give it some chance for trial and error and correction. After all, Rome wasn’t built in a day.

WeChat said: WeChat face-swiping payment uses 3D live detection technology with the highest security level, and comprehensively uses multi-modal information such as 3D, infrared, RGB, etc., which can effectively resist attacks from videos, papers, masks, etc.

At the same time, WeChat Pay will ensure account security through multi-dimensional security risk control strategies, and provide multi-factor verification. Some users need to enter the mobile phone number bound to the WeChat account or scan the QR code for verification, which further improves security. .

Because of greed, human beings are always exploring and developing. But everything exists dialectically, and rapid development will bring unexpected changes.

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