Anti-counterfeit solution provider, Nanobrick Co., Ltd (CEO: Jaehyun Joo), launched online authentication application called M-Check, following by M-tag, the magnetically color-changeable label. Building on 7 years of research and development in nano technology successfully developed mass production of color-changing materials and expanded international business cooperation. Increasing demand for M-Tag from its’ clients facing counterfeiting issues played a crucial role in launching new types of M-Tag labels: M-Tag Lite, M-Tag Standard, and M-Tag Premium. These advanced security labels have QR code and serial number and they can directly connected with the application, M-Check. Besides, this online authentication application provides product information and GPS tracking system as well. Specially, M-Tag Premium enhanced the security level to protect various products against counterfeiting as much as banknote by incorporating multiple security features into the tag.