DeepSeas Complete
Replace fragmented tool stacks with a unified security program. We integrate 24/7 managed detection, regular offensive testing, and governance advisory into a single flexible contract sized by your headcount.
Safeguard your organization across every vector with DeepSeas end-to-end security and solutions. Our comprehensive defense integrates 24/7 managed detection and response, exposure management, offensive testing, and strategic advisory into a single coordinated program. Designed to fit within your existing technology investments, our expert analysts and proven frameworks eliminate critical visibility gaps, stop sophisticated threats, and deliver measurable risk reduction.

Comprehensive cyber defense uniting proactive risk management, around-the-clock threat detection, and expert advisory under a unified program.
Replace fragmented tool stacks with a unified security program. We integrate 24/7 managed detection, regular offensive testing, and governance advisory into a single flexible contract sized by your headcount.
Achieve 24/7 threat monitoring across endpoints, cloud, identity, network, and OT environments. DeepSeas operates inside your existing security tools, utilizing AI triage and senior analysts to stop threats rapidly.
Continuously map your external attack surface and prioritize vulnerabilities by real-world exploitability and business criticality. We turn endless vulnerability backlogs into a focused, actionable list of risks to eliminate.
Deploy experienced incident responders directly into your environment during active security events. We coordinate rapid containment, forensic analysis, and system recovery while building long-term resilience against recurring attack vectors.
Embed continuous controls monitoring into daily operations to maintain audit readiness year-round. Our certified practitioners streamline compliance for frameworks like ISO 27001, SOC 2, and HIPAA without administrative friction.
Gain senior CISO-level guidance for critical architectural decisions, tool consolidation, and executive risk reporting. Our advisors help you align your security roadmap with organizational goals and defend investments before the board.
Managing security across disconnected vendors and fragmented toolsets leaves critical gaps that adversaries exploit. DeepSeas consolidates your entire defense into one cohesive program anchored by 24/7 detection and response, continuous attack surface exposure management, and experienced executive guidance. By operating inside your current technology stack, we eliminate alert fatigue, accelerate incident resolution, and measurably reduce cyber risk.

Discover how our integrated security solutions protect critical infrastructure and safeguard complex enterprise environments worldwide.
We deliver complete, measurable cyber defense backed by decades of proven operational expertise.
Comprehensive coverage spanning advisory, offensive testing, threat intelligence, MDR, SOC, and compliance.
We work directly inside your existing tools without forcing costly rip-and-replace software migrations.
Around-the-clock threat surveillance and rapid containment executed by seasoned security analysts every day of the year.
Validated as a market leader by Frost and Sullivan and recognized by Gartner for excellence.
Seasoned cybersecurity leaders, CISOs, and ethical hackers defending your business.

Chief Executive Officer
Lewie Dunsworth serves as Chief Executive Officer of DeepSeas, leading the company's mission to make cybersecurity a strategic advantage for nearly 1,000 organizations worldwide. Under his leadership, DeepSeas has grown into a recognized leader in Managed Detection and Response, earning recognition from Gartner and Frost & Sullivan as a top provider in the industry. Lewie drives the company's vision across its six-layer cyber defense stack, spanning strategic advisory, offensive security, threat intelligence, managed detection and response, the CyberFusion SOC, and governance, risk and compliance. He is committed to ensuring that enterprise, mid-market, government, and education clients receive proactive, measurable, and customized cybersecurity outcomes. Lewie's leadership reflects nearly three decades of industry experience and a steadfast focus on client trust and operational excellence.

CISM, CIPP/E, SANS GCIH, GIAC, HITRUST
Keith Robertson brings 25 years of governance, risk management, and compliance experience to DeepSeas, including prior service as a Fortune 500 Chief Security Officer and Enterprise Risk Officer. He holds an impressive array of certifications, including CISM, CIPP/E, SANS GCIH, GIAC, and HITRUST, reflecting his comprehensive expertise across security management, privacy, incident handling, and healthcare compliance. Keith's executive-level experience gives him a unique perspective on enterprise risk, allowing him to help DeepSeas clients align cybersecurity strategy with broader business objectives. His background in high-stakes corporate security leadership positions him well to guide organizations through complex governance challenges and regulatory requirements. Keith is committed to helping clients build mature, enterprise-grade risk management programs that support long-term security and compliance success across diverse industries.

CISSP, CCSK, Licensed Attorney
Sean Duffy combines 25 years of cybersecurity experience with a unique legal background, holding both CISSP and CCSK certifications as well as a license to practice law. A United States Navy veteran, Sean brings a disciplined, mission-focused approach to his work advising C-suite executives and boards of directors on cybersecurity strategy and risk. His legal expertise allows him to provide clients with a nuanced understanding of regulatory and liability considerations alongside technical security guidance, a combination that is especially valuable for organizations navigating complex compliance landscapes. Sean's extensive advisory experience makes him a trusted voice for senior leadership teams seeking to understand cybersecurity risk in business terms. His military background and legal training reflect the depth and diversity of expertise that defines the DeepSeas team.

CISSP, HITRUST
Matt Lammers is an experienced CISO and IT risk executive who brings both deep technical certification and management consulting experience to DeepSeas. Holding CISSP and HITRUST credentials, Matt has built a career helping organizations strengthen their cybersecurity posture while managing enterprise-level risk. His consulting background equips him with strong skills in translating complex security concepts into actionable business strategies for executive stakeholders. Matt's international perspective, including his status as an Australia permanent resident, gives him valuable insight into global compliance and security considerations that benefit DeepSeas clients operating across borders. He is dedicated to helping organizations build resilient, well-governed cybersecurity programs that align with both operational needs and executive priorities, reinforcing DeepSeas' commitment to customized, outcome-driven security solutions.
DeepSeas end-to-end security spans a six-layer cyber defense stack. This combines strategic advisory, offensive security, continuous threat intelligence, 24/7 managed detection and response, the CyberFusion SOC, and governance, risk, and compliance. Rather than purchasing disparate point products, your organization receives an integrated program that identifies vulnerabilities, monitors enterprise traffic, contains active cyber threats, and delivers audit-ready documentation to satisfy compliance requirements.
Speak with our cybersecurity specialists to design a defense program tailored to your environment.
Recognized as a top 40 MDR provider.
Named a Leader and top-five provider globally.
Won the Competitive Strategy Leadership Award.
Awarded for excellence in MDR strategy.
Contact our team to discuss your security goals, schedule an outside-in diagnostic, or explore our managed solutions.
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