Dyno Security is a small consulting firm of IT security specialists. We work with "hands-on" security testing of networks, applications and infrastructure, and have extensive experience from several sectors, including banking/fincance, telecom, media, e-commerce, manufacturing and retail. We also work as security advisors to support our clients in their design and development projects

The key driver for us is the passion for what we do. We are heavily invested in research projects and try to contribute to the open-source community. For us, security is a very practical concept - once you understand how your system works, making sensible risk decisions is a straightforward process.


Martin Holst Swende

Martin, with a background as M.Sc in Computer Science and Engineering started out in 2004 as a software developer.

In 2009, Martin began working full-time as security consultant, mostly within application security, but also network penetration testing, forensic investigations, code reviews and architecture reviews.

Martin has been a speaker at Defcon, Owasp, HackCon, SEC-T conferences aswell as multiple Devcon (Ethereum developer-) conferences.

He also has a keen interest within physical access controls, and is one of the core developers of Proxmark3, a tool for RFID communication and hacking.

From ~2017, Martin has been working for the Ethereum Foundation, first as Security Lead, and now one of the maintainers of the Go-ethereum client



Dyno Security AB
Tel: +46 (0)70 425 40 18
Email: martin@swende.se
PGP key:[pgp.mit.edu]