Domain 04 - IT Modernization & Cybersecurity
Modernize legacy systems with security built in from the start.
Firestone partners with organizations to modernize legacy systems and technology environments while embedding security, compliance, and operational resilience from the outset. The focus is on mission-aligned roadmaps, strengthened cybersecurity governance, and continuity across hybrid environments - so delivery accelerates without leaving readiness behind.
Domain Objectives
What this work is designed to accomplish.
- Enable secure modernization of legacy systems, applications, and infrastructure
- Strengthen cybersecurity governance, risk management, and compliance readiness
- Align technology modernization roadmaps to mission outcomes and operational requirements
- Improve resilience and continuity across evolving, hybrid technology environments
- Accelerate delivery by integrating security into modernization planning and execution
Service Lines
Modernization done with security in mind, not as an afterthought.
Most modernization initiatives fail in predictable ways. Security gets retrofitted at the end. Cloud strategy gets divorced from mission reality. The legacy systems being replaced were never fully understood in the first place. Each service line below addresses one of those failure points. The discipline behind all of them is the same. Modernize what serves the mission, build security in from the start, and stand up the governance that keeps both holding up over time.
Modernization Strategy & Transformation Planning
Assess where you are. Plan where you're going.
Firestone helps organizations assess existing technology environments and develop modernization strategies that align with mission or business priorities.
Services may include
- Modernization needs and capability gap assessment (current-state review)
- Legacy application and infrastructure modernization planning (priorities, sequencing, dependencies)
- Digital transformation roadmap development (target state, milestones, investment plan)
- Technology portfolio analysis and rationalization (application/asset inventory, cost and risk drivers)
Cybersecurity Governance & Compliance
Build the governance that holds up under audit.
Firestone supports organizations in implementing cybersecurity governance frameworks that strengthen operational resilience and support sustained compliance, including CMMC, RMF, FISMA, NIST CSF, and Zero Trust.
Services may include
- Cybersecurity governance assessment (current state, roles, decision rights, operating model)
- Cybersecurity framework implementation support (RMF, NIST CSF, Zero Trust), including tailoring and adoption planning
- Security policy, standards, and control documentation development
- Compliance readiness support (gap analysis, evidence collection, POA&M development, audit preparation)
- CMMC readiness and assessment support (Level 2 emphasis)
DevSecOps & Secure Development Integration
Build security into the pipeline, not around it.
Firestone helps organizations integrate secure development practices into modernization initiatives.
Services may include
- DevSecOps governance and operating model design (roles, policies, tooling decisions)
- Secure software development lifecycle (SSDLC) alignment (controls integration, approvals, documentation)
- Security integration for modernization delivery programs
- Risk and vulnerability identification in CI/CD pipelines
Cloud & Data Modernization Advisory
Move to the cloud with intent, not just momentum.
Firestone provides advisory services supporting cloud adoption and data modernization initiatives.
Services may include
- Cloud migration strategy and approach definition (workload profiling, sequencing, landing zone considerations)
- Data platform modernization planning (architecture options, governance, integration patterns)
- Cloud and solution architecture assessments
- Cloud governance framework design (security guardrails, cost management, operating processes)
Cyber Risk & Resilience Assessments
Know your posture before someone else exploits it.
Firestone evaluates cybersecurity posture and operational resilience to identify risks and opportunities for improvement.
Services may include
- Cybersecurity risk assessment and prioritization (threats, vulnerabilities, likelihood/impact)
- Operational resilience and readiness evaluation
- Security posture review across people, process, technology, facilities, and external service providers
- Cybersecurity maturity assessment and improvement roadmap
Who this is for
Teams modernizing under real pressure.
IT Modernization & Cybersecurity engagements are built for leaders who need to deliver securely, on schedule, and in environments where the cost of getting it wrong is real.
Federal Agency CIOs & CISOs
You're modernizing legacy environments while juggling RMF, FISMA, and Zero Trust mandates. You need a partner who can move at the pace of mission without breaking compliance posture.
Defense Contractors
CMMC enforcement is coming. You need cybersecurity governance and compliance documentation that holds up under formal assessment, not generic policy templates.
Commercial Modernization Leaders
You're driving a cloud migration, platform modernization, or major IT transformation. You need security built in from day one, not bolted on after launch.