Authors

Joona is a hacker who has experience from multiple vantage points and aspects of information security and software development, defensive and offensive alike. As an open so(u)rcer he is an author or contributor to multiple popular security tools. He is currently working as a Red Team manager at Visma.

Tomi Koski has been working with IT-systems for many moons, actually since (the wonderful) 1990’s. He is passionate about anything related to security, combining both physical and virtual worlds. He is a constant learner and very curious person about life and bug bounties. Currently, he is working for Visma as a Red (read: Purple) Teamer.

Antti Kurittu is a cybersecurity specialist with a background in incident response, cyber crime investigations and national cyber security. Currently he is working at Konecranes, a global material handling solutions company.

Tuomas Haarala is a seasoned system and network administrator with an eye and sometimes a hand on many aspects of security. He’s been working in the field since the late 1990s, in his current role at Arctic Security since 2021.

Juhani “Jussi” Eronen has been working in infosec since the late 1990s. He started out with software vulnerability research in the Oulu University Secure Programming Group, OUSPG. Since 2006 he has worked at the Finnish National Cyber Security Centre, NCSC-FI, in various tasks ranging from incident response to improving the security of emerging technologies.

Lari Huttunen is a polyglot linguist with an avid interest in defensive cyber security. He’s been working in the field since the late 1990s. At the beginning of his career he worked for the Finnish police, but since 2007 he has been employed by the private sector (Codenomicon - Synopsys - Arctic Security). Throughout his career, his main passion has been early warning. That is why he is heavily involved in researching the impact of known vulnerabilities and exposures on a global scale, as well as understanding cyber crime – but with a victim focus.