Security Blockchain Systems is an independent research project, focused on development of protected software- and hardware-based solutions intended for storing and managing private keys of financial services and solutions end-users. The problem of safe and convenient storage for private keys became evident after some of blockchain networks participants had accumulated a fair amount of assets. In spite of all the progress in cold storage, there is still no simple, convenient and universal solution available until now. We are developing a blockchain- and platform- agnostic hardware device that will combine high security level, user-friendly interface (user-transparent) and integratability with IoT-solutions. We do NOT develop a new blockchain, we do NOT establish a new cryptobank NOR create yet another cryptocurrency exchange, our goal is a protected product intended for the end user and a convenient integration platform for corporate partners.