Participate in multi-person video conferences
As a result, only he is a real person
This sounds incredible
But it really happened
Recently, the Hong Kong police disclosed a case
Multi-person "AI face-swapping" scam
The amount involved is as high as HK$200 million
In this case, an employee of the Hong Kong branch of a multinational company was invited to participate in a "multi-person video conference" initiated by the chief financial officer of the head office, and transferred HK$200 million to five local bank accounts 15 times as required.
Subsequently, he found out that he had been deceived by an enquiry with the Headquarters. The police investigation learned that only one of the victims in the so-called video conference in this case was a "real person", and the other "participants" were all fraudsters after "AI face swapping".
Recent
It also happened in Xi'an, Shaanxi
"AI face swapping" scam case
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Ms. Zhang, a financial officer in Xi'an, Shaanxi Province, had a video call with her boss, and the boss asked her to transfer 1.86 million yuan to a designated account.
Victim Ms. Zhang: The boss asked him to transfer this money quickly, and he was very anxious about this money, because his voice and video images were the same as others, so he was even more convinced that he wanted this money.
After the transfer, Ms. Zhang sent the electronic voucher to the company's internal financial group in accordance with the regulations, but unexpectedly, the boss of the group saw the message and asked her about the origin of the funds.
Victim Ms. Zhang: Then we called and checked with the boss, who said that he had not sent me the video and had not said anything about the "transfer".
Ms. Zhang, who realized that she had been deceived, hurriedly called the police for help, and the police immediately connected with the anti-fraud center and contacted the relevant bank to stop the payment urgently, and finally saved most of the defrauded funds - 1.56 million yuan.
According to experts
The "AI Face Swap" process
Mainly include:
Facial recognition tracking
Facial feature extraction
Face transformation and fusion
Background environment rendering
There are several key steps such as image and audio compositing
Behind it,
The core consists of three parts:
First, the deep learning algorithm is used to accurately identify the face images in the video, and extract key facial features such as eyes, nose, and mouth.
Secondly, these features were matched, replaced, and fused with the target face image.
Finally, the background environment is rendered and the synthesized sound is added to generate a fake face-swapping video with a high degree of realism.
Learn a few tricks
Recognize AI "face and voice change"
The emergence of AI face swapping technology
Seeing is not necessarily believing
How can we prevent this?
Experts say
In fact, no matter how realistic the AI artificial face swap is
There are some ways to distinguish between the real and the fake
Fang Yu, member of the Digital Economy and Security Working Group of the Security Professional Committee of the China Computer Federation: We can ask the other party to identify the real-time fake video by waving in front of the face during the video conversation, because it needs to generate and process the video in real time and change the face of AI.
In the process of waving the hand, it will cause data interference on the face. In the process of waving his hand, the face he faked will produce a certain amount of shaking or flashing, or some abnormal situations.
The second is that in peer-to-peer communication, you can ask some questions that only the other party knows to verify the authenticity of the other party.
Yu Nenghai, executive dean of the School of Cyberspace Security at the University of Science and Technology of China, reminded that the other party can press his nose and face to observe the changes in his face.
He said in an interview that if it were a real person's nose, it would be deformed when pressed, but the AI-generated nose would not.
The same goes for the face. A real person's face will be deformed when pressed.
Reminder: Raise awareness of precautions
Avoid the leakage of personal biometric information
Experts said that in addition to knowing some tips for identifying AI face-swapping scams, each of us should raise our awareness of prevention, and also take relevant precautions in our daily lives to develop good online habits.
First of all, we should do a good job in daily information security protection and strengthen the security protection of biometric data such as faces, voiceprints, and fingerprints. In addition, do a good job in the security management of the software and hardware of personal mobile phones, computers and other terminal equipment.
Second, do not log in to unknown websites to avoid being invaded by viruses.
Third, do a good job of authorization management for applications that may collect information such as sound, image, and even video and positioning. Not giving others the opportunity to collect their own information can also keep AI face-swapping scams away from them to a certain extent.
Source: An Jian, head of the Central Political and Legal Commission, CCTV news client