Donald A. Tevault—but you can call him Donnie—got involved with Linux way back in 2006 and has been working with it ever since. He holds the Linux Professional Institute Level 3—Security certification, and the GIAC Incident Handler certification. Donnie is a professional Linux trainer, and thanks to the magic of the internet, teaches Linux classes globally from the comfort of his living room. He's also a Linux security researcher for an IoT security company.

Deyan Tsanov has worked for large organizations over the last 10+ years. His experience includes technical support, cyber security operational activities, data risk analysis and evaluation, information security risk management, security controls implementation, and others. Graduated within the Information Security subject, he has additionally gained a variety of industry certifications to contribute to his subject matter expertise including Certified Ethical Hacker (CEH), Information System Security Management Professional (ISSMP), Certified Cloud Security Professional (CCSP), Certified Information System Security Professional (CISSP), Practitioner Certificate in Information Risk Management (PCiIRM), Security+ and others. Deyan sees Information Security Risk Management (ISRM) as an ever-evolving process that is key to preserving data, establishing successful information security programs, and being an inevitable pillar in each decision related to organizations’ strategy.

Arun Pillai is Senior DevSecOps Architect with 17 years' experience working with a variety of government departments, banking institutions, telecoms companies and Healthcare small/medium scale enterprise. He has deep experience in IT Security Consulting with focus on DevSecOps Consulting, Risk Assessment, Privacy Assessment (NIST 800-53), Threat and Vulnerability Management, Vulnerability Assessment Penetration Testing (VAPT), Secure Code Review, Security Architecture Review, IT Security Governance, Risk & Compliance, Cloud Security and Migrations. Arun is Certified Information Systems Security Professional (CISSP), Certified in Risk and Information Systems Control (CRISC) and TOGAF professional. He holds a master's degree in information technology and is pursuing doctor program from the Swiss School of Business and Management (SSBM).