Developed the world’s first Hot H/W Wallet BCS (Blockchain Security) has been experienced in cyber security consulting, R&D projects, SI (System Integration) business, and hardware information security business with Government and Companies in Korea. Due to the emerging security issues in Blockchain, we have established a Start-up with research team from SNU (Seoul National University) Department of Electrical and Computer Engineering Security Optimization Research Lab. BCS provides services as hardware security business related with Blockchain and ICO consulting.