Security Risk Assessments
Controlled assessments and penetration testing help identify weaknesses across systems, infrastructure, and processes before attackers or supply chain partners expose them.
Supply chain risk rarely sits in one system or one vendor. DeepSeas helps organizations assess third-party, operational technology, cyber, and compliance exposure across complex ecosystems, then turn findings into a prioritized strategy. With nearly 30 years of cyber defense experience, DeepSeas delivers practical guidance designed to improve visibility, support resilience, and make risk decisions easier to explain to leadership, customers, and insurers.

Assess supply chain exposure, prioritize cyber risks, and build practical strategies for stronger vendor and operational resilience.
Controlled assessments and penetration testing help identify weaknesses across systems, infrastructure, and processes before attackers or supply chain partners expose them.
DeepSeas evaluates assets, controls, stakeholders, and risk scenarios to produce prioritized treatment plans that support business, contractual, regulatory, and compliance decisions.
Senior advisors help leaders address supplier risk, acquisition planning, governance, cyber insurance requirements, and security decisions with practical, defensible guidance.
DeepSeas connects supply chain risk management to the wider security program. Assessments examine what attackers could reach, how vendors and operational environments affect exposure, and which safeguards deserve attention first. Findings are translated into clear priorities, treatment options, and leadership-ready reporting. The approach supports organizations managing complex vendor ecosystems, customer requirements, cyber insurance expectations, and IT/OT dependencies without relying on disconnected checklists.

DeepSeas supports nearly 1,000 organizations worldwide with measurable, customized cybersecurity outcomes.
Get expert-led guidance connected to the operational realities of your security environment.
Nearly 30 years of cyber defense experience informs practical supply chain risk decisions.
Specialists connect advisory, offensive security, threat intelligence, MDR, and GRC capabilities.
Prioritized findings and documented outcomes help leadership understand risk reduction and next actions.
Customized combinations of technology, personnel, and services fit complex vendor ecosystems.
Experienced cybersecurity leaders bring strategic and operational perspective.

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.
Supply chain risk management consulting helps organizations identify, evaluate, and prioritize cybersecurity risks created by vendors, suppliers, contractors, technology partners, and connected operational environments. The work can include stakeholder interviews, asset and dependency analysis, risk assessment, control review, treatment planning, governance support, and strategic guidance. The goal is to make supply chain exposure visible and establish practical actions that align with business priorities.
Speak with DeepSeas about your assessment, governance, and strategy priorities.
Recognition as a top 40 Managed Detection and Response provider.
Recognition as a Leader and top-five provider in the 2024 Frost Radar market.
Award for Competitive Strategy Leadership in Managed Detection and Response.
Recognition through the 2024 Global MDR Best Practices Award for Strategy.
ISO Lead Auditor certifications held by DeepSeas specialists.
Share your supply chain concerns and learn how DeepSeas can help assess priorities, strengthen oversight, and guide next steps.
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