Managed Detection Response
DeepSeas provides continuous detection, investigation, and response across endpoint, network, cloud, identity, email, SaaS, and operational technology environments.
Protect your organization with expert cybersecurity and data privacy services in Schaumburg, IL. DeepSeas combines managed detection and response, risk assessments, penetration testing, governance, compliance support, and strategic advisory to help organizations identify threats, reduce exposure, strengthen resilience, and make cybersecurity a strategic advantage across modern business environments.
Integrated cybersecurity and data privacy capabilities help organizations monitor threats, reduce exposure, test defenses, and strengthen governance.
DeepSeas provides continuous detection, investigation, and response across endpoint, network, cloud, identity, email, SaaS, and operational technology environments.
Structured assessments identify strengths, weaknesses, and prioritized risks across systems, processes, assets, and controls, supporting defensible security decisions.
Ethical hackers conduct controlled attack simulations across networks, cloud environments, applications, APIs, and other systems to expose weaknesses before attackers exploit them.
Continuous attack surface monitoring, vulnerability prioritization, dark web intelligence, and security posture analysis help focus remediation on the risks most likely to matter.
DeepSeas designs and operates governance, risk, and compliance programs with control development, evidence preparation, gap assessments, and ongoing monitoring.
Tabletop exercises, response planning, and incident response support help teams coordinate decisions, validate processes, and improve preparedness before a breach occurs.
DeepSeas connects strategic advisory, offensive security, threat intelligence, managed detection and response, and governance, risk, and compliance into a coordinated cybersecurity program. For organizations in Schaumburg and across Illinois, this approach supports proactive monitoring, measurable risk reduction, audit readiness, and practical security improvements without requiring a fragmented collection of disconnected providers. Services can work with the tools and governance your organization already uses.
DeepSeas helps organizations pursue measurable cybersecurity outcomes through integrated, practitioner-led services.
"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 combines broad cyber defense capabilities with experienced practitioners and an outcome-focused operating model.
DeepSeas brings approximately 30 years of cyber defense experience to complex security and privacy challenges.
One cyber defense program can connect advisory, testing, intelligence, monitoring, response, and compliance capabilities.
Bring-your-own-stack support helps organizations in Schaumburg use established SIEM, EDR, and CNAPP investments.
24/7 monitoring, detection, and response supports organizations across Illinois and broader business environments.
Experienced cybersecurity leaders support strategic, technical, governance, and operational priorities.
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, risk assessments, penetration testing, exposure management, vulnerability management, incident response, tabletop exercises, governance and compliance services, strategic security advisory, and virtual CISO support. Capabilities can be combined into a broader cybersecurity program based on your organization’s risks, existing tools, operational needs, and compliance responsibilities.
Talk with DeepSeas about your organization’s security and privacy priorities.
Certification held by DeepSeas specialists.
Recognition as a top 40 MDR provider by Gartner.
Recognition as a Leader and top-five provider.
Award for Managed Detection and Response strategy leadership.
Recognition for global MDR strategy.
Share your priorities with DeepSeas and explore practical cybersecurity, data privacy, monitoring, testing, and compliance options.
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