Incident Response
DeepSeas places experienced responders alongside your team to scope incidents, coordinate remediation, investigate threat activity, and guide recovery while working inside your tools and governance.
When a cyber incident demands clear decisions, DeepSeas brings experienced responders into your environment to investigate, contain, and recover. Our incident response consultants coordinate remediation, conduct digital forensics, perform malware analysis, and support threat research while maintaining chain of custody. From active response through recovery, we help turn disruption into stronger detections, improved playbooks, and measurable security resilience.
Coordinated cybersecurity services help organizations investigate incidents, contain threats, recover operations, and strengthen future response capabilities.
DeepSeas places experienced responders alongside your team to scope incidents, coordinate remediation, investigate threat activity, and guide recovery while working inside your tools and governance.
Network Detection & Response adds visibility into lateral movement, command and control, data staging, and unmanaged devices, correlating network activity with endpoint, identity, and cloud investigations.
DeepSeas examines endpoint, identity, network, cloud, email, and data telemetry for evidence of current or historical intrusion, then provides clear findings and prioritized remediation guidance.
Incident response readiness exercises test plans, coordination, escalation, decision rights, and communication across security, IT, legal, communications, and executive teams.
Threat intelligence enriches investigations with actor context, indicator information, malware analysis, and dark web research so teams can understand what observed activity means.
Managed Detection & Response provides continuous detection and response across endpoint, network, cloud, identity, email, SaaS, and operational technology environments.
DeepSeas incident response consultants work alongside your team during active incidents, focusing on scoping, containment, remediation, and recovery. Responders coordinate digital forensics, network analysis, malware analysis, reverse engineering, and threat hunting while preserving chain of custody. Leadership receives clear updates, while threat intelligence adds context to the investigation. After recovery, findings inform stronger detections, response policies, and exposure reduction.
DeepSeas helps organizations move from urgent incident decisions to lasting improvements in security operations.
"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 combines experienced responders, broad cyber defense capabilities, and practical guidance for high-consequence security events.
Nearly 30 years of cyber defense experience supports informed investigation, containment, remediation, and recovery decisions.
Incident response connects with threat intelligence, detection, offensive security, exposure management, and governance capabilities.
Responders provide structured updates and explain what happened, what was affected, and what action comes next.
Post-incident findings become improved detections, policies, playbooks, and exposure reduction rather than a closed report.
Experienced cybersecurity practitioners support complex investigations and strategic recovery.
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.
A commonly used incident response lifecycle includes preparation, detection, analysis, containment, eradication, recovery, and post-incident activity. In practice, the steps overlap and may repeat as new evidence emerges. DeepSeas applies this lifecycle through readiness planning, digital forensics, network analysis, malware investigation, threat hunting, remediation, recovery support, and improvements to detections and response procedures.
Talk with DeepSeas about investigation, containment, recovery, or readiness support.
Held by DeepSeas specialists.
Recognized as a top 40 MDR provider in 2023.
Named a Leader and top-five provider.
Award for Managed Detection and Response.
Recognition for global MDR strategy.
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