Managed Detection Response
DeepSeas provides 24/7 detection and response across endpoint, network, cloud, identity, email, SaaS, and OT environments, using existing security tools wherever possible.
DeepSeas delivers expert-led tech security solutions in Nashville for organizations seeking stronger protection, clearer cyber risk visibility, and measurable outcomes. From 24/7 managed detection and response to penetration testing, compliance support, advisory, and incident readiness, our integrated services help security teams defend existing environments without unnecessary technology replacement.
Integrated cybersecurity capabilities help Nashville organizations detect threats, reduce exposure, test defenses, and strengthen resilience.
DeepSeas provides 24/7 detection and response across endpoint, network, cloud, identity, email, SaaS, and OT environments, using existing security tools wherever possible.
Controlled penetration tests, red team engagements, and adversary simulations reveal attack paths and control weaknesses before malicious actors exploit them.
Risk assessments identify organizational strengths, weaknesses, and prioritized risks through stakeholder interviews, asset inventory, workshops, and documented treatment planning.
GRC services support policy and control development, continuous monitoring, evidence organization, audit readiness, and practical alignment with applicable requirements.
Tabletop exercises and readiness reviews test response processes, team coordination, escalation decisions, communications, and the artifacts needed during a cyber incident.
Experienced advisors help leaders shape security strategy, prioritize investments, prepare for board or insurer reviews, and build programs that match actual risk.
DeepSeas combines strategic advisory, offensive security, threat intelligence, managed detection and response, CyberFusion SOC capabilities, and governance, risk, and compliance support. Nashville organizations can keep the tools and governance they already use while adding expert-led coverage across IT, cloud, operational technology, mobile, and BYOD environments. The result is a more coordinated security program focused on practical risk reduction and measurable outcomes.
See how integrated cybersecurity capabilities can help organizations reduce uncertainty, improve readiness, and strengthen operational resilience.
"DeepSeas data security experts are top notch. They have helped us to improve our cybersecurity posture through risk assessments, penetration testing, and the development of a Data Governance Strategy. They are an invaluable partner."
DeepSeas brings broad cyber defense capabilities together under one expert-led security partner.
Nearly 30 years of cyber defense experience supporting nearly 1,000 organizations worldwide.
24/7 monitoring, detection, and response helps Nashville organizations address threats continuously.
Bring-your-own-stack support works with security tools your organization already owns and operates.
Advisory, testing, response, intelligence, and GRC work together to reduce fragmented security operations.
Experienced cybersecurity leaders and practitioners support complex security needs.
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, endpoint and network monitoring, penetration testing, security risk assessments, vulnerability management, exposure management, incident response, governance and compliance support, strategic advisory, vCISO services, and security program development. Services can be combined into a broader cyber defense program or selected to address a specific operational, compliance, testing, or leadership need.
Talk with DeepSeas about your organization’s cybersecurity priorities and risks.
Recognized as a top 40 Managed Detection and Response provider by Gartner.
2024 Frost Radar Leader and top-five provider recognition.
2024 Best Practices Competitive Strategy Leadership Award for MDR.
2024 award recognizing strategy in managed detection and response.
Share your priorities with DeepSeas and discuss practical cybersecurity support for your organization.
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