'Access Control,' where we explore the intricate landscape of cryptography and cybersecurity with our esteemed guest, Filippo Valsorda, a distinguished cryptography engineer and an influential open source maintainer. For this 21st episode of Access Control Podcast, a podcast providing practical security advice for startups, Director of Developer Relations at Teleport Ben Arent chats with Filippo Valsorda. Filippo is a cryptography engineer and open-source maintainer. From 2018 to 2022, he worked on the Go Team at Google and was in charge of Go Security. In 2022, he became a full-time open source maintainer and still maintains the cryptography packages that ship as part of the Go Standard library along with maintaining a set of cryptographic tools, such as mkcert, and the file encryption tool, Age. This episode covers cryptography, trust, security and open source.