• DTVHINDI
• Security & Sefty
• August 21, 2022
• 66 views

What is deepfake and why should you care?

Learn more details about the technology that uses AI to change people’s faces in videos and manipulate audios Have you ever thought about seeing your face in a random video? Or hear your voice saying things you would never say? Well, this is possible with a technology called deepfake, which allows this manipulation, especially in videos, in a compelling way. See below for more details on what a deepfake is and why you need to be concerned about this technique. What is deepfake, and why should you be concerned (Vitor Pádua / Tecnoblog) Deepfake uses  Artificial Intelligence to change people’s faces in videos and synchronize lip movements, expressions, and other details, in some cases with impressive and compelling results. This wave of swapping people’s faces in videos is not new. But in December 2017, a Reddit user called deepfakes took it a step further. Using open source Artificial Intelligence and Machine Learning tools such as  Keras and  TensorFlow  (the latter from Google), he created an algorithm to train a Neural Network to map one person’s face onto another’s body, frame by frame. Instead of relying on manual editing as in the past, the user, through the tool (which was named Deepfake), only needs a source to recognize the model of the “victim’s” face and map the structure of the target head and make the overlap. The software can adjust the movement of the original video to the new beginning, including facial expressions and lip movements. In the beginning, Deepfake required advanced knowledge on the user’s part. Still, when others created applications and systems capable of automating the entire process, the tool was massively used for evil: dozens of adult videos edited with the software soon began to appear, with the face of actresses and artists. Deepfake’s “joke” wasn’t limited to adult videos; however: there are several creations that put celebrity faces in movies they weren’t present in. However, the possibilities for using the software are numerous and harmful. Even  Mark Zuckerberg was the target of a fake video. Some examples of easily accessible deepfake tools are the Reface application, the DeepSwap, and DeepFakes Web sites, and the FaceApp and DeepFaceLab programs. It is important to note that deepfake is different from shallow fake. The premise is the same, but the difference is in the quality. In superficial pretender, the rate of manipulation is lower, making identification easier. The types of deep fakes As much as the focus of deepfake is the exchange of faces in videos, anyone who thinks that the practice is restricted to that is wrong. The technique is also used for audio manipulation, where recordings can be created that simulates a particular person’s voice, a type of deepfake that can be easily shared in messengers such as WhatsApp. In addition, we can already come across textual deepfakes, with typewriters generated by artificial intelligence; deepfakes on social networks, for the creation of fake profiles on the internet; and real-time deepfakes, in which it is possible to change the face in live broadcasts, a technique allowed by the DeepFaceLive software, for example. Potential risks of deepfakes Although the main target of the community around the tool…