Andreas M. Antonopoulos is a noted technologist and serial entrepreneur who has become one of the most well-known and well-respected figures in Bitcoin. As an engaging public speaker, teacher, and writer, Andreas makes complex subjects accessible and easy to understand. As an advisor, he helps startups recognize, evaluate, and navigate security and business risks.
Andreas grew up with the internet, starting his first company, an early BBS and proto-ISP, as a teenager in his home in Greece. He earned degrees in computer science, data communications, and distributed systems from University College London (UCL)—recently ranked among the world’s top 10 universities. After moving to the United States, Andreas cofounded and managed a successful technology research company, and in that role advised dozens of Fortune 500 company executives on networking, security, data centers, and cloud computing. More than two hundred of his articles on security, cloud computing, and data centers have been published in print and syndicated worldwide. He holds two patents in networking and security.
In 1990, Andreas started teaching various IT topics in private, professional, and academic environments. He honed his speaking skills in front of audiences ranging in size from five executives in a boardroom to thousands of people in large conferences. With more than four hundred speaking engagements under his belt, he is considered a world-class and charismatic public speaker and teacher. In 2014, he was appointed as a teaching fellow with the University of Nicosia, the first university in the world to offer a master's degree in digital currency. In this role, he helped develop the curriculum and cotaught the "Introduction to Digital Currencies" course, offered as a massive open online course (MOOC) through the university.
As a Bitcoin entrepreneur, Andreas has founded a number of Bitcoin businesses and launched several community open source projects. He serves as an advisor to several Bitcoin and cryptocurrency companies. He is a widely published author of articles and blog posts on Bitcoin, a permanent host on the popular Let’s Talk Bitcoin podcast, and a frequent speaker at technology and security conferences worldwide.
David A. Harding is a technical writer focused on creating documentation for open source software. He is the coauthor of the Bitcoin Optech weekly newsletter (2018–2023), 21.co Bitcoin Computer tutorials (2015–2017), and Bitcoin.org developer documentation (2014–2015). He is also a Brink.dev grant committee member (2022–2023) and former board member (2020–2022).