I majored in mathematics at university and received a master's degree in cryptography and then completed my doctorate in electronic computing.I have 20 years of experience in the information security industry with my knowledge of cryptography.He has been in the financial IT field for 20 years at Koscom Corporation, a subsidiary of the Korea Exchange (KRX), the capital market IT center in Korea.After leaving a public company in 2018 and starting a blockchain specialized company, it grew while gaining experience in energy, entertainment, distribution, and media fields.Currently, I am focusing on a business that combines blockchain and hydrogen energy.I am a computer security expert, financial IT expert, blockchain expert, and hydrogen energy expert.