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Hex Five Team

Cesare Garlati is the founder of Hex-Five Security and the inventor of MultiZone. He is also the Chief Security Architect at prpl Foundation and an internationally renowned expert in information security. Prior to founding Hex-Five he was Vice President of mobile security at Trend Micro.

Cesare holds a U.C. Berkeley MBA, a Master in Electrical Engineering and Computer Sciences, professional certifications from Microsoft, Cisco and Oracle, and he is a Fellow of the Cloud Security Alliance, where he founded and chaired the Mobile Security and IoT Security groups.

Katherine Hsu is the Outbound Lead of Hex-Five Security. Kat is a multi-disciplinary expert in end-to-end cybersecurity:  embedded systems, network, application, cloud and security operations. She has successful track records of creating economic value for large OEM, semiconductor and enterprise customers by introducing and deploying advanced technologies.

Prior to Hex Five Kat held sales, marketing and engineering positions at Hewlett Packard Enterprise, Wind River Systems, QNX Software (subsidiary of Blackberry) and VLSI Technology. Kat holds an MBA and a Bachelor in Computer Science from U.C. Berkeley.


David Patterson is Vice Chair of the RISC-V Foundation, Professor Emeritus at UC Berkeley and winner of the Turing Award 2017 – generally recognized as the “Nobel Prize of computing”. David served as UC Berkeley’s Computer Science Division chair, the Computing Research Association chair, president of the Association for Computing Machinery, and was elected to the National Academy of Engineering, the National Academy of Sciences, and the Silicon Valley Engineering Hall of Fame.

David received the Berkeley Citation in 2016, which is given to distinguished individuals who go beyond the call of duty and whose achievements exceed the standards of excellence in their fields.

Art Swift is the CEO of Esperanto Technologies, a RISC-V member. Art has more than 25 years of executive-level experience in the tech industry, including CEO of Wave Computing, CEO at low power chip-maker Transmeta, CEO of nanotech innovator Unidym, President of MIPS Licensing at Wave Computing, and vice president of marketing at MIPS.

A keen supporter of the open standards, Art was most recently Vice-Chair of the RISC-V marketing committee and President of the prpl Foundation, an international organization of leading technology companies that promotes the development of open source software for embedded computing.

Jon Geater is a cryptographic security industry veteran and globally recognized expert in Trusted Execution Environments. He is founder and CTO of Jitsuin, a company using DLT technology to reduce costs and increase security of IoT deployments in critical infrastructure.

Previously Chief Technology Officer for global cryptography and HSM company Thales eSecurity, Jon has held senior global roles in leading companies such as ARM (Director of Technology and Division CTO, Secure Services Division) and TEE specialist Trustonic (founding Chief Technology Officer and Executive Vice President Engineering).

A keen supporter of open standards, Jon has been a board director and chair of the Security Task Force at GlobalPlatform, founder of the Key Management Interoperability Protocol at OASIS, a contributor to TCG, and recently served on the Governing Board of the Linux Foundation’s Hyperledger project.


Celeste Cooper is currently the Chief of Staff to the CEO at Western Digital. In her role at Western Digital, Celeste is an active member of the RISC-V Foundation supporting commercialization efforts and the buildout of the RISC-V ecosystem. Prior to joining Western Digital, Celeste was at Hewlett Packard Enterprise where she held several roles including Vice President of Global Professional Services and Vice President of Strategy & Operations / Chief of Staff for the Communications Solutions Business.

Celeste has also been involved with several startups including her role as the Chief Operating Officer of Runa, Inc.


Joseph Jacks is the Founder and General Partner of OSS Capital. Joseph is based in San Francisco and leads the US investing arm as well as global investment strategies. Joseph is also the Co-Founder of Aljabr. Previously, Joseph was an EIR at Quantum Corporation in support of the Rook project which was subsequently donated to the CNCF (its first storage project) where he has also been involved (at the board level, in various committees and as an advisor) since inception. Joseph also founded KubeCon (now also run by the Linux Foundation’s CNCF) while also building Kismatic, the first enterprise-focused commercial Kubernetes company (acquired by Apprenda).

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