Offensive Advisory for the Modern Business.
Veteran-owned. Elite-led. Protection-focused.
Discipline
Mission-level precision in every engagement
Integrity
Transparent, honest guidance you can trust
Curiosity
Relentless pursuit of security excellence
Opis, the Roman goddess of abundance and protection, stands in marked contrast to Olympia, the Greek representation of divine strength and sovereignty. Opis signifies the same power that is safeguarded, maintained, and protected.
At Opis Cybersecurity, that ethos persists through proactive measures, strategic vigilance, and the protection of what clients and partners hold in the highest regard. Strength is not merely demonstrated; it is secured, fortified, and steadfastly protected.
Opis Cybersecurity is a proud Veteran-owned cybersecurity partnership firm founded on principles of discipline, integrity, and relentless curiosity. Built on strong values, our team reflects the full spectrum of elite cybersecurity talent, from seasoned veterans to highly skilled cybersecurity experts.
We are a collective of offensive security professionals, data-driven analysts, AI-forward innovators, and compliance-ready partners dedicated to elevating every client's security posture. Our team is intelligent, humble, driven, and adaptable - the kind of talent you want on your side when the stakes are high.
Whether you're gearing up for an assessment, enhancing your defenses, or integrating modern frameworks, our team delivers the accuracy, determination, and technical excellence your digital evolution requires.
Marie Hamilton
Founder & Chief Executive Officer
Marie Hamilton is the Founder and Chief Executive Officer of Opis Cybersecurity, an offensive advisory and compliance-focused cybersecurity firm helping organizations understand exposure, reduce risk, and make stronger security decisions. She leads Opis with a multidisciplinary background spanning cybersecurity, private investigations, military service, and cybersecurity law.
Marie founded Opis to bridge the gap between technical risk, executive decision-making, and legal responsibility. Her work brings together cybersecurity, investigations, external attack surface management, and emerging legal-policy insight to help organizations understand risk before it becomes operational, financial, or reputational damage. Through Opis, she helps businesses prepare for authorized security testing, strengthen governance, evaluate exposure, and align cybersecurity strategy with real-world operational risk.