Managed Detection Response
DeepSeas provides continuous detection and response across endpoint, network, cloud, identity, email, SaaS, and operational technology environments using the tools your organization already owns.
Small businesses face growing cyber risk without the staffing or resources of a large security department. DeepSeas provides practical security solutions spanning managed detection and response, risk assessments, penetration testing, exposure management, compliance support, and strategic advisory. Built for organizations that need measurable protection, expert guidance, and security that can scale with the business.

Integrated cybersecurity services help small businesses reduce exposure, respond to threats, and build a more resilient security program.
DeepSeas provides continuous detection and response across endpoint, network, cloud, identity, email, SaaS, and operational technology environments using the tools your organization already owns.
Security risk assessments identify strengths, weaknesses, and prioritized risks through stakeholder interviews, asset reviews, risk workshops, and documented treatment planning.
Ethical hackers conduct controlled attack simulations across networks, cloud environments, applications, APIs, and other authorized systems to expose weaknesses before malicious actors exploit them.
Exposure Management maps external assets, monitors dark web risks, prioritizes vulnerabilities by exploitability and asset criticality, and helps teams focus on the most important fixes.
Strategic security advisors help leaders make defensible decisions about risk, security programs, technology investments, board reporting, insurance requirements, and organizational priorities.
DeepSeas supports control development, evidence organization, gap assessments, documentation, and ongoing governance for organizations facing customer, regulatory, or insurance requirements.
Small businesses often have capable tools but limited time, staffing, and security expertise to operate them effectively. DeepSeas connects managed monitoring, offensive testing, exposure management, advisory, and compliance support into a program shaped around your actual risks. Bring-your-own-stack support helps preserve existing investments while expert analysts and advisors provide the coverage and judgment needed to reduce surprises and improve resilience.

See how integrated cybersecurity services can support clearer priorities, stronger defenses, and measurable risk reduction.
DeepSeas combines experienced practitioners, continuous protection, and flexible services for organizations that need security to work harder.
Approximately 30 years of cyber defense experience supports practical guidance for complex security decisions.
24/7 monitoring, detection, and response helps small teams address threats without building a round-the-clock SOC.
Bring-your-own-stack support works with security technology your organization already owns and understands.
Documented findings, actions, and reporting help demonstrate progress to leadership, auditors, insurers, and customers.
Experienced cybersecurity practitioners support organizations across security, risk, operations, and compliance.

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.
The right combination usually addresses prevention, detection, response, and governance. Common building blocks include managed detection and response, security risk assessments, vulnerability or exposure management, penetration testing, email protection, incident response preparation, and strategic advisory. DeepSeas can combine these capabilities around your existing tools and the risks most relevant to your organization rather than requiring a one-size-fits-all program.
Talk with DeepSeas about practical cybersecurity solutions for your organization.
Recognition as a top 40 MDR provider by Gartner.
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 for strategy in the 2024 Global MDR Best Practices Awards.
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