Security in the Open: Let’s Raise the Bar in Open Source Software Security
  • Working upstream to improve long-term outcomes
  • Releasing security tools and libraries as open source to help secure the broader ecosystem
  • Providing engineering and financial support for security improvements across the ecosystem
  • Some reflections on software supply chain, secure software development, and memory-safe languages

Mark Ryland
Director, Amazon Security

Mark Ryland is the Director, Amazon Security, reporting to the CISO of Amazon and engaging with a variety of external and internal stakeholders on behalf of Amazon and AWS Security leadership. Ryland works with public policy and public sector regulators and customers to help them understand how AWS builds and operates its highly secure cloud offerings, and how they can best leverage the AWS cloud to enhance their own cyber security. In addition, he works as a key channel for incoming feedback from customers and regulators, making sure their requirements in security and compliance are understood and prioritized across AWS service teams as well as Amazon as a whole. Ryland also works closely with industry partners to enhance the security of the broader information technology ecosystem as Amazon’s representative on the governing board of the Open Source Security Foundation as well as in industry groups focusing on the security and reliability of cutting-edge artificial intelligence systems.

Ryland has more than 32 years of experience in the technology industry across a wide range of leadership roles in information security, software engineering, distributed systems, technical standardization, and public policy. Most recently he founded and ran AWS’s Office of the CISO from 2018 to 2023, a team with which he still collaborates closely on a variety of efforts. Prior to that, he was the Director of Solutions Architecture and Professional Services for the AWS Worldwide Public Sector team, founding the team in 2011 and growing it to a large global organization through early 2018. Before joining AWS, Ryland worked for Microsoft for 13 years in two different stints (1991-2000 and 2008-2011) in multiple roles including founder and Director, Standards Strategy Group. In between stints at Microsoft, he was co-founder and CTO of two start-ups, and served as vice president and director of the Washington, DC office of a public policy think tank. Additional information on Mr. Ryland and his background is available at