About Us

Antigen’s mission is to stop crime, fight fraud, and tackle threats for organizations to protect our community, people, and way of life. 

By focusing on managing cyber risk from a holistic perspective, Antigen can provide a variety of services to businesses that include incident response, recovery engineering, managed detection & response and advanced security stacks that include financial coverage. 

Founded in 2020 by security experts in the Detroit, Michigan area, Antigen Security was named a CRN Emerging Technology Vendor in 2022.

Antigen’s founders met in the Information Security community in Michigan, and have continued to show their passion for community, education and helping others by giving their time to special projects, conferences, and creating educational material across Michigan and at information security conferences throughout the US.

Practitioners and Partners

The Antigen Security team is drawn from the best and brightest in the information security community, including top researchers, speakers, analysts, and executives who live and breathe security on a daily basis, both in their personal and professional lives.

Our practitioner’s credentials include, but are not limited to:


Certified Information Systems Security Professional


Certified Information Systems Auditor


Certified Information Security Manager


Offensive Security Certified Professional


Global Information Assurance Certification Forensic Analyst


Global Information Assurance Certification Reverse Engineering Malware


Global Information Assurance Certification Network Forensic Analyst


Global Information Assurance Certification Advanced Smartphone Forensics

Our Team

Steven Legg

Co-Founder, Chief Executive Officer

Steven Legg has over 19 years of experience in the Information Technology and Information Security fields, and spent the last eight years focusing on governance, risk, and compliance within security programs while most recently building a strategic services practice for a Managed Detection & Response firm. 

In leadership roles, Steven has developed programs that specifically address security maturity, architecture, and risk in addition to other domains such as Incident Response. His Virtual CISO duties led him to work with regulatory organizations including the SEC, NERC, OEB, and more.  

He unleashes his passion for the security community by leading a local security group (#misec), organizing B-Sides & Converge Detroit, and mentoring local folks in the industry.

Steven has held 25+ industry certifications over his career, and enjoys focusing on new challenges to grow and strengthen the organization.

Kyle Andrus

Co-Founder, Chief Security Officer

Kyle Andrus has had a focus in Information Technology for over fifteen years with the last seven years being dedicated to Digital Forensics and Incident Response. Kyle took lead on building forensic analyst capabilities and knowledge at a Fortune 500 company by excelling at endpoint detection & response, disk & memory forensics, detection engineering, malware analysis, and creating forensic procedures for industrial control systems. He also worked with local law enforcement, FBI, and Homeland Security on a variety of cyber threats and computer forensic related cases.

He continues to show his passion and support for the security community by leading a local security group (#misec), being an organizer for B-Sides Detroit & Converge, and giving presentations covering a variety of Digital Forensic & Incident Response topics.

Kyle currently holds SANS certificates for the GCFA, GCFA, and GREM.

Matt McGonigle

Chief Revenue Officer

Matt has been actively involved in all aspects of the insurance and risk management industries since the late 1990s. He has negotiated and amassed over 750 insurance carrier relationships with a network of tens of thousands of insurance brokers. Prior to joining Antigen Security, Matt founded one of the largest insurance wholesales brokerage companies in the United States, and developed technology and risk management solutions in use by some of the country’s leading institutions.

He continues to work vigorously to lead the creation of risk management solutions that actively reduce and prevent risk. This culmination of proactive and preventive risk management aligned with insurance underwriting truly sets these solutions apart.
Matt holds various licenses and certifications across the insurtech and fintech industries, and has created many certifications and related programs for banks, broker dealers and other institutions.

Daniel Falk

Chief Technology officer

Daniel Falk has over 15 years of technology and security experience in various industries ranging from education to the Fortune 500. He has been the technical lead on small to large implementations of secure technology through the use of endpoint detection tools, SIEM logging, device hardening and network security solutions to increase organizational security maturity while meeting detection, response, and business requirements.

Daniel is a leader of a Michigan-based security community group (#misec), an organizer for B-Sides Detroit & Converge Detroit, and a mentor in the security community. He also co-hosts the #misec Insider Threat podcast.

Daniel currently holds SANS certificates for GCED, GPEN and the ISC2 CISSP.

Peter Cheli

Senior operations manager

With over 15 years of experience in the information technology field, Peter is a highly skilled and accomplished Operations expert. He has a proven track record of successfully leading cross-functional teams and delivering innovative solutions that drive business growth.

His expertise in process improvement, stakeholder management and project management has enabled him to drive operational efficiencies and enhance the overall customer experience. He is skilled in leveraging data analytics to identify trends and make informed decisions that drive business growth. His passion for technology and commitment to excellence have earned him a reputation as a trusted advisor among his clients and co-workers alike. Peter is dedicated to driving continuous improvement and ensuring the seamless delivery of mission-critical technology initiatives. 

Previously, he served as the Vice President of Managed Services for a California-based MSP and as an Independent Organizational Development Consultant. He currently holds an ITIL IT Service Management Certification.

Make sure your business overcomes threats

Get in touch to learn how to keep your business protected using industry-leading tools and experts who are passionate about what they do.