 Deepfake stands for deep learning and fake, which means faking content utilizing AI techniques, such as machine learning, specifically GAN algorithms. Hold on. Is that really Audrey Tung? Let's watch the video again. Is the on-screen Audrey the same Audrey we know? Today, anyone can use a simple device to record a video. Actors can imitate a subject's vocal tones or body movements after just 12 hours of deep learning. Anyone can generate a deep fake video in just a couple of weeks. The costs of doing so are almost negligible. You may think it's easy to identify this video as deepfake, yet are you sure your friends and family can spot the differences? Let's consider this from a different angle. If deepfake is something you aren't familiar with, are you sure you can still see it for what it is? When images and sounds can be so easily altered, what should we believe? I'm Audrey Tung. After you've watched this deepfake video, I'd like to remind everyone again, when you come across an unknown video, please exercise caution, always verify before forwarding. Once you develop the habit of active verification and elevate your own media competence, you can help protect your relatives and friends from harmful disinformation.