About Adversarial
Decades of world-class cyber success in business-friendly tools, processes, and guidance.
Adversarial Risk Management was founded by Jerry Perullo — 20+ year CISO of the New York Stock Exchange and its parent company, Intercontinental Exchange. Adversarial was created to take what he learned at ICE and beyond and make it accessible to the world. Tools come and go with the latest threats and technology, but operational rigor needs durable predictability — a true System of Record.
From 2001 to 2022, Perullo served as Chief Information Security Officer of Intercontinental Exchange (ICE), the parent of the New York Stock Exchange (NYSE) and other financial entities. ICE provided a platform to build a centralized cybersecurity function for diverse threat profiles. During his tenure, ICE grew from a 40-person private company to a 10,000+ person global enterprise valued at over $75 billion through an IPO, innovation, and M&A.
After retiring in 2022, Perullo aimed to deliver enterprise-level security to businesses of all sizes. He launched Adversarial with a team of elite Georgia Tech engineers to create tools he wished he had during his career. The Adversarial Risk Management platform offers adaptive, modular tools for comprehensive cybersecurity solutions.
During his time at ICE/NYSE, Perullo was a strong advocate for communities such as FS-ISAC, serving as a Board Director and Chairman. He collaborated with CISOs, financial institutions, and intelligence agencies, gaining a Top Secret/SCI clearance and insight into public and private sector threats.
With one unified team, Perullo protected exchanges from nation-state sabotage, secured global clearinghouses with billions in margin collateral, and safeguarded millions of personal records. His transparent and efficient approach ensured shareholder, regulator, and business leader confidence while tackling these complex challenges.
The Adversarial team.
"A's hire A's, and B's hire C's." We grew up on that philosophy and we hire to it — hand-picked engineers and practitioners, often from Georgia Tech after Professor Perullo's Enterprise Cybersecurity Management class. Come talk shop at our Atlanta Krog Market office, or join the team yourself.
Platform Engineering
Engineering is led by Tommy McCormick, previously a Senior Security Engineer at Datadog, where he led the Compute Security team hardening the internal Kubernetes platform, and before that at Intercontinental Exchange architecting secure containerized workloads across AWS and Azure.
Cyber Program & Policy
Control selection, governance design, and the regulatory reading that decides what actually has to be true — not just what a framework asks for. The experience behind it spans enterprise security advisory, large-scale deployments into regulated industries, and federal cyber policy.
Product & Delivery
The platform is built against live customer programs rather than a backlog abstracted away from them, which is why the workflows match how a program actually runs. The experience behind it spans enterprise systems, high-performance computing, and client delivery at Fortune 500 scale.