Managed Detection Response
Add experienced monitoring, investigation, threat hunting, detection engineering, and response capability through DeepSeas MDR, operating within the security tools your organization already owns.
Strengthen your cybersecurity capacity with expert staff augmentation from DeepSeas. Extend your team with experienced professionals who can support detection and response, security assessments, governance, compliance, advisory, and incident readiness. Flexible, practitioner-led support helps organizations address capability gaps, operate existing tools more effectively, and advance measurable security outcomes without building every function internally.
Extend internal capacity with expert support across cyber defense, security operations, risk, compliance, and strategic program leadership.
Add experienced monitoring, investigation, threat hunting, detection engineering, and response capability through DeepSeas MDR, operating within the security tools your organization already owns.
Access CISO-level guidance for cybersecurity strategy, governance, executive reporting, risk management, compliance planning, budgeting, and ongoing security program oversight.
Use experienced specialists to evaluate cybersecurity posture, identify prioritized risks, examine compromise evidence, and clarify which improvements should receive attention first.
Strengthen your team with ethical hackers who conduct penetration testing, adversary emulation, red team exercises, and social engineering assessments to expose weaknesses before attackers do.
Augment governance and compliance capacity through control development, gap assessments, evidence organization, continuous monitoring, audit preparation, and practitioner-led advisory support.
Prepare for and manage cyber incidents with support for response planning, tabletop exercises, digital forensics, containment, recovery, threat research, and post-incident improvement.
DeepSeas helps organizations close cybersecurity capability gaps without forcing a rip-and-replace approach. Staff augmentation can support the tools, processes, and governance already in place, whether your team needs operational monitoring, senior advisory, offensive testing, compliance expertise, or incident response capacity. With capabilities spanning IT, cloud, operational technology, mobile, and BYOD environments, support can align with your risk profile and existing security program.
Explore how experienced cybersecurity support can improve visibility, readiness, governance, and risk reduction.
"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!"
Bring experienced cybersecurity capability into your program with support designed around measurable outcomes.
Approximately 30 years of cyber defense experience support practical, informed security decisions.
One team spans advisory, offensive security, intelligence, MDR, SOC operations, and GRC capabilities.
Support can work inside your existing SIEM, EDR, CNAPP, and security technology investments.
Engagements focus on prioritized risk reduction, operational evidence, and security improvements you can explain.
Experienced practitioners support organizations across complex cybersecurity environments.
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.
Cyber security staff augmentation adds experienced cybersecurity professionals to your existing team for defined operational, technical, advisory, or compliance needs. Support may include monitoring and response, security assessments, penetration testing, vCISO guidance, incident readiness, governance, or program development. The model helps organizations address capability gaps while retaining their existing tools, processes, governance, and internal ownership.
Discuss your capability gaps with experienced cybersecurity practitioners.
Recognized as a top 40 Managed Detection and Response provider.
Named a Leader and top-five provider in the 2024 Frost Radar Global Managed Detection and Response Market.
Received the 2024 Best Practices Competitive Strategy Leadership Award for Managed Detection and Response.
Received the 2024 Global MDR Best Practices Award for Strategy.
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