Slava Gomzin is a cybersecurity and crypto enthusiast, full-stack technologist, and entrepreneur. He is the author of multiple publications on information security and technology, including the books Hacking Point of Sale: Payment Application Secrets, Threats, and Solutions and Bitcoin for Nonmathematicians: Exploring the Foundations of Crypto Payments. Hacking Point of Sale became a handbook and the primary reference for many professionals in payment, retail, and cybersecurity industries. Slava has designed and co-created two cryptocurrencies. Graft (GRFT) was launched in 2018 and, at some point, was in the top 25% of the cryptocurrencies by market capitalization. Lyra (LYR) was launched in 2020 and was designed and coded from scratch using recent advances in crypto technologies. Slava is currently Director of Software Development at Toshiba, focused on payments R&D, product security, and cloud technologies.