AI-Powered Cyber Fortress

Enterprise-level threats.
Enterprise-level protection.
Finally accessible to everyone who needs it.

LibertyShield Cybersecurity delivers research-backed, AI-driven security operations to mid-market organizations in critical sectors — the ones that have always been targeted like enterprises but never protected like one.

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"The regional hospital, the energy supplier, the financial institution serving a small city — they are targeted just like the largest enterprises. They should not have to defend themselves alone."

LibertyShield was founded on a simple observation: the organizations that keep American communities running — hospitals, utilities, local financial institutions — have always faced the same digital threats as Fortune 500 companies. But the security infrastructure designed to protect them was built for organizations ten times their size.

We exist to close that gap. Not with scaled-down enterprise products, but with a purpose-built platform and a service model designed from the ground up for organizations that cannot sustain a dedicated 24/7 security team on their own.

Our approach is grounded in original peer-reviewed research, validated at national scale, and built to get better with every client we serve.

Security Services

Five Layers of Protection

A complete security architecture for organizations that need enterprise-grade protection without enterprise-level complexity or cost. Each layer is designed to work independently or as part of a fully integrated program.

01
Layer 1
Foundational Attack Surface & Human Risk

Comprehensive mapping of your organization's digital exposure — every endpoint, application, cloud asset, and network entry point — combined with targeted security awareness programs that reduce the human risk factor that attackers exploit most.

02
Layer 2
Advanced White-Box Penetration Testing

Full-scope adversarial simulation using advanced techniques that go beyond standard penetration testing frameworks. We test your defenses the way real attackers do — methodically, persistently, and with full knowledge of your environment to find what others miss.

03
Layer 3 — Flagship
Liberty Cognitive Core

AI-driven Security Orchestration, Automation and Response platform that operates continuously without requiring a dedicated analyst team around the clock. Detects, prioritizes, and responds to threats in real time — learning your environment as it protects it.

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04
Layer 4
Secure-by-Design Emerging Tech Integration

Security architecture for AI deployments, cloud migrations, IoT integrations, and emerging technology adoption. We ensure that new capabilities are built with security embedded from the start — not added as an afterthought after a breach has already occurred.

05
Layer 5 — Strategic Capability
National-Grade Datacenter & Backbone Engineering

For organizations building or securing critical infrastructure at scale, LibertyShield brings a capability that goes beyond managed services: senior advisory and hands-on architecture for national-grade datacenter and network backbone deployments. It is not a productized service. It is the expertise of someone who has built this infrastructure, seen it tested under real operational conditions, and knows what it takes to make it resilient.

Layer 3 · Flagship Platform

The Liberty Cognitive Core

The Liberty Cognitive Core is LibertyShield's AI-driven Security Operations platform — a cloud-native system that automates the most labor-intensive layer of security operations: alert triage. Built on peer-reviewed original research and powered by proprietary AI, it does not rely on pre-written playbooks or known attack signatures. It learns from your environment, adapts to your threat landscape, and gets smarter over time.

Always one step ahead — detects anomalous behavior the moment it appears, including zero-day attacks that no existing rulebook could have anticipated
Scales to your organization automatically — calibrates to your size, sector, and volume without custom engineering
Acts before you are called — contains verified threats immediately, without waiting for an analyst to be available
Built to resist the attacks that target AI itself — formally tested against adversarial manipulation designed to blind security platforms
Tailored to every size — enterprise-grade protection calibrated to your organization, because security should not be a privilege reserved for the largest budgets
Research & Publications

Grounded in Original Research

The Liberty Cognitive Core is not built on repackaged vendor technology. Its foundations are documented in peer-reviewed research published in indexed academic journals — available for independent review.

Published
Adversarial Robustness of Hellinger-Distance Clustering Under Centroid Shift Attacks
Brazilian Journal of Development · v.12, n.3 · 2026
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Published
Evolutionary Algorithms for Robust Data Clustering: A Comprehensive Literature Review
Revistaft · ISSN 1678-0817 · Vol.30 Ed.156 · 2026
View Publication →
Accepted · Awaiting Publication
Federated Learning Paradigms for Privacy-Preserving Multi-Organizational Threat Intelligence Sharing
Accepted for publication · 2026
Preprint available at SSRN →
Accepted · Awaiting Publication
Evolutionary Computation-Enhanced White-Box Penetration Testing
Accepted for publication · 2026
Preprint available at SSRN →
SSRN Preprint · Awaiting Peer Review
Adversarial Robustness of Hellinger-Distance Clustering: Implications for AI-Driven SOC Telemetry Classification
Preprint: SSRN · 2026
Preprint available at SSRN →
SSRN Preprint · Awaiting Peer Review
Cognitive Alert Triage: A Fuzzy-Logic SOAR Framework for Reducing Analyst Fatigue in Mid-Market Security Operations
Preprint: SSRN · 2026
Preprint available at SSRN →
SSRN Preprint · Awaiting Peer Review
Collective Defense by Design: A Federated Learning Framework for Privacy-Preserving Threat Intelligence Sharing
Preprint: SSRN · 2026
Preprint available at SSRN →
About the Founder

Marcelo Silva de Araujo

Marcelo is a Computer Engineer and AI and Cybersecurity professional with over a decade of experience building security infrastructure for some of the largest organizations across national financial institutions, healthcare networks, and critical logistics operations.

Before founding LibertyShield, he served as a principal architect during the foundational period of a security operations platform recognized as a Leader by ISG Provider Lens for six consecutive years. His work has been recognized internationally, including as a keynote speaker at technology forums across multiple continents, and novel AI solutions developed under his leadership have been featured in Forbes Tech.

"I built this company because the gap between the threats organizations face and the protection they can access is not a technology problem. It is a design problem. We can fix that — and we should."

Marcelo is an IEEE Senior Member, an active researcher whose work is published in peer-reviewed journals, and a mentor to the next generation of STEM professionals through the Open Avenues Foundation. He is based in Lowell, Massachusetts, and believes that protecting critical infrastructure and investing in the people who will defend it are two sides of the same commitment.

Marcelo Silva de Araujo
Marcelo Silva de Araujo
Founder & Principal Architect
IEEE Senior Member Recognized by the world's largest technical professional organization for engineers and technology professionals
Peer-Reviewed Researcher Seven publications across indexed academic journals — two published, two accepted awaiting publication, three SSRN preprints under peer review
National-Scale Deployment Experience Principal architect on security infrastructure serving Brazil's largest public institutions and critical sectors
Open Avenues Foundation Mentor Volunteer STEM mentor for university students building careers in technology and cybersecurity
Computer Engineer Over a decade at the intersection of artificial intelligence and cybersecurity, from national infrastructure to original research
Insights & Coverage

What Is Happening Out There

Real incidents. Real organizations. The threat landscape that mid-market organizations face every day — documented and analyzed from the practitioner perspective.

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Whether you are evaluating your current security posture, considering a new deployment, or simply want to understand what enterprise-grade protection would look like for your organization — we are here.