Organizations in Chicago need security operations that keep pace with evolving threats, limited internal staffing, and complex IT environments. DeepSeas delivers managed detection and response, managed SIEM, exposure management, threat intelligence, compliance support, and strategic advisory through a customizable cyber defense program designed to produce measurable outcomes and continuous protection.
DeepSeas combines continuous monitoring, response, testing, advisory, and compliance support into a connected security program.
DeepSeas MDR provides 24/7 detection and response across endpoint, network, cloud, identity, email, SaaS, and OT environments. Analysts investigate alerts, tune detection logic, and work within the tools your organization already owns.
Managed SIEM operations include detection engineering, tuning, investigation, and response. DeepSeas can operate within your existing SIEM or provide SIEM capabilities with ingestion and storage included.
Network Detection & Response adds visibility into lateral movement, command and control, data staging, unmanaged devices, legacy systems, industrial equipment, and other environments where endpoint agents may not be installed.
Exposure Management continuously maps external attack surfaces, monitors dark web sources, identifies leaked credentials, and prioritizes vulnerabilities by exploitability, asset criticality, and current threat activity.
DeepSeas evaluates information security programs, assets, controls, processes, and people to identify prioritized risks, clarify treatment options, and provide a defensible foundation for security decisions.
Senior advisors help security and business leaders set direction, consolidate tools, prepare for board or insurer review, build roadmaps, and make practical decisions around cybersecurity risk and investment.
DeepSeas brings monitoring, response, testing, exposure reduction, compliance, and advisory together instead of leaving your team to coordinate disconnected providers. For Chicago organizations managing complex business environments and evolving cyber risk, the program can work with existing SIEM, EDR, and CNAPP tools while connecting operational findings to prioritized action. The result is clearer accountability, stronger visibility, and measurable progress.
DeepSeas helps organizations turn cybersecurity operations into clearer decisions, documented outcomes, and continuous improvement.
"In cybersecurity we were not looking for a vendor, we were looking for a trusted partner that could push us, challenge us, and ensure we got better at protecting our systems every day. We found that partner with DeepSeas, and they have helped us be far smarter and better than..."
"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..."
A connected security partner helps your organization reduce operational complexity and act on the risks that matter most.
24/7 monitoring, detection, and response supports Chicago organizations without requiring a fully staffed internal SOC.
Bring-your-own-stack support helps teams preserve investments in SIEM, EDR, CNAPP, and related security platforms.
Documented investigations, actions, and reporting make security progress easier to explain to boards, auditors, and insurers.
Practitioner-led specialists connect advisory, offensive security, threat intelligence, MDR, and GRC capabilities.
Experienced cybersecurity practitioners support organizations with strategic and operational security expertise.
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 managed security service provider delivers ongoing cybersecurity operations for organizations that need additional expertise, monitoring, or response capacity. Services may include managed detection and response, SIEM operations, threat hunting, incident investigation, vulnerability and exposure management, compliance support, and strategic advisory. DeepSeas combines these capabilities so organizations can address operational, strategic, and governance needs through one connected program.
Talk with DeepSeas about the right managed security approach for your organization.
DeepSeas supports organizations across Illinois and its broader national service footprint.
Illinois
State Coverage
United States
National Reach
24/7 Monitoring
Availability
Discuss your environment, coverage needs, and security priorities with DeepSeas.
Held by DeepSeas specialists.
Recognition as a top 40 MDR provider.
Leader and top-five provider recognition.
Competitive Strategy Leadership Award recognition.
Global MDR Best Practices Award recognition.
Share your priorities with DeepSeas and explore a managed security program aligned with your environment, tools, and risk.
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