Managed Detection Response
DeepSeas provides 24/7 detection and response across endpoint, network, cloud, identity, email, SaaS, and operational technology using the security tools you already own.
DeepSeas helps organizations in Tulsa strengthen security with expert-led managed detection and response, offensive testing, risk assessments, compliance support, and strategic advisory. With 24/7 monitoring, coverage across endpoint, network, cloud, identity, email, and operational technology, our team turns fragmented security activity into measurable cyber defense built around your tools, risks, and business priorities.
Integrated cybersecurity services help Tulsa organizations prevent, detect, investigate, and respond to evolving threats.
DeepSeas provides 24/7 detection and response across endpoint, network, cloud, identity, email, SaaS, and operational technology using the security tools you already own.
Ethical hackers use manual testing and adversary techniques to identify exploitable weaknesses across networks, cloud environments, applications, APIs, physical access, and social engineering.
Comprehensive assessments identify security strengths, weaknesses, and prioritized risks through stakeholder interviews, asset inventories, risk workshops, and documented treatment planning.
Continuous attack surface monitoring, dark web intelligence, vulnerability management, and prioritization help reduce the exposures most likely to lead to compromise.
DeepSeas builds practical security programs around governance, policies, controls, metrics, roadmaps, and operating practices aligned with organizational risk and business goals.
Practitioner-led GRC services support control development, evidence collection, compliance readiness, continuous monitoring, and audit preparation across recognized frameworks.
Tulsa organizations face a changing mix of cyber risk across business systems, cloud environments, applications, and operational technology. DeepSeas brings advisory, offensive security, threat intelligence, managed detection and response, and governance together so your program can identify meaningful exposure, improve defenses, and document progress. Services can work with your existing tools and be tailored to your organization’s actual priorities.
DeepSeas combines long-standing cyber defense experience with measurable services for organizations across industries and environments.
"DeepSeas is a pleasure to work with. They produce consistent and outstanding results for us and our program, while being thorough, knowledgeable, and easy to work with. We have not had a finding in a certification/re-certification audit in three years across five ISO standards!"
DeepSeas connects experienced practitioners, continuous operations, and flexible services into one accountable cyber defense partner.
Approximately 30 years of cyber defense experience supports practical guidance for complex security decisions.
Continuous monitoring, detection, and response support organizations in Tulsa and across distributed environments.
Bring-your-own-stack support works with established SIEM, EDR, and CNAPP investments instead of requiring replacement.
Advisory, offensive security, intelligence, operations, and compliance work together around your organization’s risk.
Experienced cybersecurity leaders and practitioners guide measurable security outcomes.
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 provides managed detection and response, network and endpoint monitoring, penetration testing, cybersecurity risk assessments, compromise assessments, exposure management, vulnerability management, incident response, governance and compliance, virtual CISO support, security program development, and strategic security advisory. Services can be combined or selected individually based on your organization’s security priorities, existing tools, operating model, and business requirements.
Talk with DeepSeas about your security priorities, existing tools, and risk environment.
Recognition as a top 40 MDR provider by Gartner.
Recognition as a Leader and top-five provider in 2024.
Competitive Strategy Leadership Award for MDR.
2024 award recognition for MDR strategy.
ISO Lead Auditor certifications held by specialists.
Tell DeepSeas about your security goals and receive guidance on practical next steps.
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