Incident Response
DeepSeas responders support active incidents through scoping, containment, digital forensics, malware analysis, recovery, and post-incident improvements that help prevent repeat compromise.
Cyber incidents demand more than alerts—they require coordinated decisions, skilled investigation, and disciplined recovery. DeepSeas helps organizations detect, contain, investigate, and recover from threats while turning lessons learned into stronger defenses. With nearly 30 years of cyber defense experience and 24/7 monitoring capabilities, our experts support businesses across the US through active response and long-term readiness.
Integrated services help organizations prepare for, detect, investigate, contain, and recover from cyber incidents.
DeepSeas responders support active incidents through scoping, containment, digital forensics, malware analysis, recovery, and post-incident improvements that help prevent repeat compromise.
Tabletop exercises and mock incidents test response plans, decision rights, communications, evidence handling, and coordination across security, IT, legal, communications, and leadership teams.
24/7 detection and response operate inside the security tools you already own, combining automated triage with analyst judgment, threat hunting, and documented response actions.
Network Detection & Response adds visibility into lateral movement, command and control, data staging, unmanaged devices, and environments where endpoint agents cannot be installed.
Endpoint MDR provides continuous monitoring, investigation, and response for endpoints and servers, with alert enrichment, containment actions, and case documentation for your team.
Email monitoring identifies phishing, business email compromise, malicious links, attachments, and account takeover activity, then supports message removal, account action, and investigation.
When an incident is active, DeepSeas places experienced responders alongside your team to establish scope, contain malicious activity, investigate what happened, and guide recovery. Threat intelligence, digital forensics, network analysis, malware research, and response coordination work together rather than creating disconnected investigations. After containment, findings can inform detections, policies, and exposure reduction so the same path is harder to use again.
DeepSeas connects active response, operational evidence, and continuous improvement to reduce uncertainty during cyber incidents.
"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 combines response expertise, continuous monitoring, and practical cybersecurity guidance in one accountable partner.
Nearly 30 years of cyber defense experience supports informed investigation, containment, recovery, and post-incident improvement.
Continuous monitoring and response capabilities help organizations address threats beyond the capacity of a small internal security team.
Detection, threat intelligence, offensive security, GRC, and advisory capabilities work together across the incident lifecycle.
DeepSeas works inside the security tools organizations already own, supporting practical operations without requiring a rip-and-replace approach.
Cybersecurity practitioners support response, risk, governance, and executive decision-making.
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.
Incident management is the coordinated process of preparing for, detecting, analyzing, containing, eradicating, and recovering from cybersecurity incidents. It also includes assigning decision rights, preserving evidence, communicating with stakeholders, documenting actions, and improving controls after the event. Effective incident management connects technical response with business, legal, communications, leadership, and compliance considerations so the organization can make informed decisions throughout the incident lifecycle.
Speak with DeepSeas experts about response, readiness, and continuous cyber defense.
Held by DeepSeas specialists.
DeepSeas recognized as a top 40 MDR provider.
Recognized as a Leader and top-five provider.
Best Practices Competitive Strategy Leadership Award.
Award for Managed Detection and Response strategy.
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