Compromise Assessment
Assess target or portfolio environments for evidence of current or historical intrusion, credential misuse, persistence, and lateral movement before or after an acquisition.
Protect portfolio value with cybersecurity built for private equity firms and their portfolio companies. DeepSeas supports diligence, post-acquisition integration, standardized security baselines, ongoing monitoring, compliance, advisory, and incident readiness. Our complete cyber defense model helps operating partners and portfolio CISOs identify risk quickly, strengthen controls consistently, and create measurable security outcomes across complex, growing portfolios.

Integrated cybersecurity services supporting diligence, integration, risk reduction, governance, and ongoing protection across portfolio companies.
Assess target or portfolio environments for evidence of current or historical intrusion, credential misuse, persistence, and lateral movement before or after an acquisition.
Identify strengths, weaknesses, and prioritized risks through stakeholder interviews, asset inventory, risk workshops, and documented treatment planning for defensible decision-making.
Extend continuous monitoring, investigation, and response across endpoint, network, cloud, identity, email, SaaS, and operational technology environments.
Build a scalable security program around business goals, risk, governance, policies, metrics, operating cadence, and the resources each portfolio company can execute.
Receive senior guidance for acquisitions, divestitures, board discussions, insurer reviews, security investment decisions, and portfolio-wide cybersecurity direction.
Develop continuous compliance and control programs with evidence packaging, gap assessments, policy support, and audit-ready reporting for customer, regulatory, and insurance requirements.
Private equity firms need a repeatable way to understand and reduce cyber risk across companies with different tools, teams, and maturity levels. DeepSeas combines outside-in diagnostics, compromise assessment, managed detection and response, exposure management, advisory, and compliance support into a connected program. The result is clearer diligence, stronger post-acquisition integration, and measurable progress without requiring every portfolio company to build a security function from scratch.

Help leadership understand cyber risk, prioritize action, and demonstrate progress across portfolio companies.
DeepSeas brings complete cyber defense and practitioner-led expertise to private equity security priorities.
Designed for sponsors and portfolio companies seeking consistent cybersecurity outcomes across multiple environments.
Connect advisory, offensive security, intelligence, monitoring, response, and compliance through one coordinated partner.
Document risk reduction and operational outcomes that support board, insurer, auditor, and investment discussions.
Nearly 30 years of cyber defense experience serving enterprise and mid-market organizations worldwide.
Experienced cybersecurity practitioners connect technical work to business and investment 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.
Cybersecurity due diligence can identify evidence of compromise, exposed assets, control weaknesses, governance gaps, and remediation priorities before an investment or acquisition decision. DeepSeas can assess networks, endpoints, identities, cloud, email, and other relevant telemetry, then provide a clear view of whether evidence of compromise exists and what actions should follow. The findings help investment and operating teams understand cyber risk alongside other transaction considerations.
Talk with DeepSeas about diligence, integration, or ongoing portfolio cybersecurity.
Certification held by DeepSeas specialists.
Recognition as a top 40 MDR provider by Gartner.
Recognized as a Leader and top-five provider in 2024.
Award for Competitive Strategy Leadership in MDR.
Award for strategy in global managed detection and response.
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