The "Deepfake Detection Solution" is a solution that detects unnaturalness that humans cannot distinguish from fictitious images, videos, and audio data generated using deepfake technology, and determines whether they are real or not. Deepfake technology is rapidly evolving, and we are now moving into an era where even individuals can easily create fake media. While the social impact and concerns are growing, it is said that countermeasures are urgently needed, particularly in the financial and media industries, where personal authentication and the authenticity of information are important. Here, we will provide an overview of deepfake detection technology and introduce the solutions owned by NABLAS.