Independent Information Security and Cybersecurity

DeepSeas provides independent information security and cybersecurity expertise for organizations that need clearer risk decisions, stronger defenses, and measurable outcomes. From security assessments and program development to managed detection, incident response, compliance, and strategic advisory, our practitioner-led services help enterprise and mid-market teams reduce exposure without forcing them to replace the tools they already use.

Cybersecurity analysts reviewing threat intelligence and security dashboards

Our Cybersecurity Services

Independent security expertise spanning assessment, defense, response, advisory, testing, compliance, and continuous risk reduction.

Cybersecurity Risk Assessment

Evaluate your information security program, identify prioritized risks, and create a defensible treatment plan supported by stakeholder interviews, risk workshops, and formal reporting.

Managed Detection Response

Receive continuous detection and response across endpoint, network, cloud, identity, email, SaaS, and OT environments, with analysts investigating events and completing work inside your existing tools.

Security Program Development

Build a structured cybersecurity program around business goals, governance, policies, metrics, operating processes, and continuous improvement, with ownership designed to transfer to your team.

Penetration Testing

Use controlled attack simulations and hands-on ethical hacking to identify exploitable weaknesses across networks, cloud environments, applications, APIs, and organizational processes.

Governance Risk Compliance

Develop and operate compliance programs with control mapping, evidence organization, gap assessments, policy support, and continuous monitoring for regulatory, customer, and insurance requirements.

Strategic Security Advisory

Access senior cybersecurity guidance for board decisions, acquisitions, tool strategy, risk prioritization, program transformation, cyber insurance, and executive reporting.

Expert-Led Cyber Defense

Independent Guidance, Measurable Security Outcomes

DeepSeas connects strategic advice with operational cybersecurity capabilities, so recommendations are grounded in what is happening across your environment. Whether you need an independent risk assessment, a stronger security program, continuous monitoring, or support preparing for compliance demands, our team can work with the tools and governance you already have. The result is practical prioritization, clearer accountability, and measurable progress against cyber risk.

Security consultant presenting a cybersecurity risk assessment to business leaders
Trusted Across Industries

Cybersecurity Outcomes

DeepSeas supports nearly 1,000 organizations worldwide with proactive, customized, and measurable cybersecurity 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!"

Ed Jones
Ed Jones
The DeepSeas Difference

Why Choose DeepSeas?

Get an independent cybersecurity partner that connects strategy, technology, people, and response.

Independent Perspective

Receive objective guidance focused on your actual risk, priorities, existing tools, and business objectives.

Practitioner Expertise

Work with experienced security professionals who have operated programs across complex enterprise and regulated environments.

Integrated Capabilities

Connect advisory, testing, threat intelligence, detection, response, and compliance through one coordinated security partner.

Measurable Progress

Document risk reduction, security outcomes, audit readiness, and operational improvements with evidence leaders can review.

Meet The DeepSeas Team

Experienced cybersecurity practitioners bring strategic and operational depth.

Portrait of Lewie Dunsworth, Chief Executive Officer at DeepSeas

Lewie Dunsworth

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.

Portrait of Keith Robertson, Risk Management and Compliance Executive at DeepSeas

Keith Robertson

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.

Portrait of Sean Duffy, Cybersecurity and Legal Advisor at DeepSeas

Sean Duffy

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.

Portrait of Matt Lammers, CISO and IT Risk Executive at DeepSeas

Matt Lammers

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.

Frequently Asked Questions

What does an information security consultant do?

An information security consultant evaluates how an organization identifies, manages, and responds to cyber risk. The work may include reviewing controls, interviewing stakeholders, assessing networks and systems, testing defenses, developing policies, supporting compliance, planning improvements, or advising executives. The goal is to provide independent, practical recommendations that align security investments with business priorities and the threats most relevant to the organization.

What is included in an independent cybersecurity assessment?

Can cybersecurity consultants work with our existing tools?

What types of cybersecurity services does DeepSeas provide?

How can a virtual CISO support an organization?

When should an organization consider penetration testing?

Can DeepSeas help prepare for compliance audits?

What happens if we experience a cybersecurity incident?

Need Help With A Security Decision?

Speak with DeepSeas specialists about your priorities, risks, and next steps.

Recognized Cybersecurity Expertise

Awards and Recognition

Gartner top 40 Managed Detection and Response provider recognition

Gartner Top 40 MDR Provider

Recognized as a top 40 Managed Detection and Response provider by Gartner.

2024 Frost Radar Global Managed Detection and Response Market recognition

2024 Frost Radar MDR Leader

Recognized as a Leader and top-five provider in the 2024 Frost Radar Global Managed Detection and Response Market.

Frost and Sullivan Competitive Strategy Leadership Award recognition

Frost & Sullivan Competitive Strategy Leadership Award

2024 Best Practices Competitive Strategy Leadership Award for Managed Detection and Response.

2024 Global MDR Best Practices Award recognition

2024 Global MDR Best Practices Award

Recognized with the 2024 Global MDR Best Practices Award for Strategy.

Build A Stronger Security Program

Tell DeepSeas about your cybersecurity priorities and receive guidance on practical next steps.

Contact Us Today

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