Network Detection
Network Detection & Response provides continuous visibility into traffic, helping analysts identify lateral movement, command and control, data staging, and unmanaged devices that endpoint tools may miss.
Protect your organization with expert-led network security services and solutions designed to improve visibility, uncover hidden threats, and strengthen your response capabilities. DeepSeas combines continuous monitoring, detection and response, penetration testing, risk assessment, exposure management, and strategic guidance to help organizations across the United States reduce cyber risk and make security a measurable business advantage.
Integrated network security capabilities help identify threats, validate defenses, prioritize exposure, and strengthen cyber resilience.
Network Detection & Response provides continuous visibility into traffic, helping analysts identify lateral movement, command and control, data staging, and unmanaged devices that endpoint tools may miss.
Managed Detection and Response delivers continuous monitoring, investigation, and response across network, endpoint, cloud, identity, email, SaaS, and operational technology environments.
Manual network penetration testing examines external and internal attack paths, Active Directory, APIs, wireless systems, cloud environments, and physical access points to reveal weaknesses automated tools miss.
Exposure Management continuously maps external assets, monitors dark web exposure, and prioritizes vulnerabilities by exploitability, asset criticality, and current threat activity.
Vulnerability Management combines asset discovery, automated scanning, threat intelligence, prioritization, remediation tracking, and reporting to focus teams on the issues that matter most.
Cybersecurity Risk Assessments evaluate information security programs, identify prioritized risks, document treatment plans, and create a defensible foundation for security and compliance decisions.
Network security is more than monitoring a perimeter. DeepSeas connects network telemetry with endpoint, identity, cloud, and threat intelligence context so analysts can investigate the full path of an intrusion. Whether you need continuous detection, a focused penetration test, exposure visibility, or a broader managed program, DeepSeas works with your existing security tools and helps turn findings into measurable risk reduction.
DeepSeas helps organizations improve visibility, prioritize risk, and strengthen security operations with measurable outcomes.
"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 brings integrated expertise, operational depth, and flexible security capabilities to organizations across the United States.
Nearly 30 years of cyber defense experience supporting nearly 1,000 organizations worldwide.
24/7 monitoring, detection, and response delivered by the DeepSeas team.
Bring-your-own-stack support helps organizations keep established SIEM, EDR, and CNAPP investments.
Security guidance spans IT, cloud, operational technology, mobile, BYOD, and governance needs.
Experienced practitioners connect strategy, technology, operations, and 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.
The main purpose of network security is to protect systems, data, users, and connected devices from unauthorized access, disruption, misuse, and compromise. Effective network security combines visibility, monitoring, access controls, vulnerability management, threat detection, response processes, and ongoing improvement. DeepSeas connects network activity with endpoint, identity, cloud, email, and threat intelligence context to help organizations understand and reduce cyber risk.
Talk with DeepSeas about your environment, priorities, and security objectives.
ISO Lead Auditor certifications held by DeepSeas specialists.
Recognition as a top 40 Managed Detection and Response provider.
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 through the 2024 Global MDR Best Practices Award for Strategy.
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