useB provides non-face-to-face authentication service using artificial intelligence facial recognition. The essential part of the growing non-face-to-face service due to the Corona 19 incident is accurate customer identification. In particular, financial institutions (bank, securities firms, insurers, electronic financiers, and virtual asservice providers) are required to carry out non-face-to-face certification in accordance with the financial transaction law. useB provides the most convenient and legitimate non-face-to-face authentication tool.