Managed Detection Response
DeepSeas provides continuous detection, investigation, and response across endpoint, network, cloud, identity, email, SaaS, and operational technology environments using existing security tools.
Explore Top Security Companies and Solutions in New York through DeepSeas, a complete cyber defense provider offering managed detection and response, penetration testing, risk assessments, compliance support, advisory, and incident response. With approximately 30 years of experience and coverage for enterprise, mid-market, government, education, healthcare, and regulated organizations, DeepSeas helps New York organizations reduce risk with measurable, customized security outcomes.
Integrated cybersecurity services help New York organizations detect threats, reduce exposure, strengthen programs, and demonstrate measurable risk reduction.
DeepSeas provides continuous detection, investigation, and response across endpoint, network, cloud, identity, email, SaaS, and operational technology environments using existing security tools.
Manual penetration testing and adversary simulation identify exploitable weaknesses across networks, cloud environments, applications, APIs, physical access, and social engineering controls.
Risk assessments examine your external exposure, controls, processes, assets, and people to identify prioritized risks and provide a defensible plan for improvement.
Continuous attack surface monitoring, vulnerability prioritization, dark web monitoring, and threat intelligence help organizations focus remediation on the risks most likely to matter.
DeepSeas designs and operates compliance programs with control development, evidence organization, gap assessments, continuous monitoring, and audit support.
Experienced advisors support board reporting, security strategy, program development, cyber insurance reviews, acquisitions, and decisions about internal or outsourced capabilities.
DeepSeas combines managed detection and response, offensive security, threat intelligence, advisory, incident response, and governance into a coordinated security program. New York organizations can keep the security tools they already own while adding expert monitoring, investigation, testing, and guidance. Coverage can extend across IT, cloud, operational technology, mobile, and BYOD environments, helping teams address complex risk without managing disconnected providers.
DeepSeas helps organizations turn cybersecurity activity into clearer decisions, stronger defenses, and evidence-based outcomes.
"DeepSeas allows my team to deliver the compliance needed to stay up-to-date with all of our governing bodies. Furthermore, we are more confident that our staff, faculty, and students are better protected with DeepSeas as a cybersecurity partner. Without a doubt, DeepSeas is worth every dollar spent. This is our..."
"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 expert-led cybersecurity services together under one accountable partner.
Approximately 30 years of cyber defense experience informs practical, outcome-focused security guidance.
24/7 monitoring, detection, and response supports organizations that cannot staff continuous security operations internally.
Bring-your-own-stack support helps New York organizations use existing SIEM, EDR, and CNAPP investments.
Strategic, technical, compliance, and operational specialists address security needs across complex environments.
Experienced cybersecurity practitioners support organizations with practical, measurable guidance.
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, cybersecurity risk assessments, exposure management, vulnerability management, incident response, strategic advisory, virtual CISO support, governance and compliance, and incident response readiness. Organizations can select individual capabilities or combine them into a broader complete cyber defense program tailored to their environment and objectives.
Speak with DeepSeas about your organization’s cybersecurity priorities and risk exposure.
ISO Lead Auditor certifications are held by DeepSeas specialists.
Recognition as a top 40 Managed Detection and Response provider by Gartner.
Recognized as a Leader and top-five provider in the 2024 Frost Radar Global MDR Market.
Award recognizing Competitive Strategy Leadership in Managed Detection and Response.
Recognition for the 2024 Global MDR Best Practices Award for Strategy.
Tell DeepSeas about your environment, priorities, and security challenges to begin a focused conversation.
To help us assist you faster, please include the reason for your message so the relevant team can reach out as soon as possible.
To help us assist you faster, please include the reason for your message so the relevant team can reach out as soon as possible.