What a security architecture review is
A security architecture review is a structured, risk-based evaluation of your security design, control framework and technology integrations. It examines your network architecture, cloud configurations, identity management, data-protection mechanisms and security controls, then pinpoints design weaknesses, trust-boundary gaps and control misalignments.
Controls only protect you when they are designed well, integrated properly and aligned to the risks your business actually carries. The review tests all three — surfacing structural weaknesses while they are still cheap to fix, and producing an architecture that is more resilient and easier to defend at audit.
Who needs a security architecture review
The review matters most in complex, regulated environments where design risk compounds over time:
- Enterprises with layered network, cloud, identity and application estates.
- Banks, financial institutions and payment operators under regulatory scrutiny.
- Organisations adopting cloud, going through digital change or scaling infrastructure.
- Teams consolidating tooling and wanting controls aligned to real business risk.
- Businesses preparing for regulatory or audit assessment of architectural maturity.
CyberSigma’s role
We evaluate your architecture across network, cloud, identity and data, model the threats against it, validate configuration and control enforcement, map findings to the standards you report against, and deliver a prioritised improvement roadmap — then validate the improvements after remediation.
Assessment plus configuration review
Each engagement pairs a structured architecture assessment with a detailed configuration review, so you find not only design gaps but whether controls are actually integrated and enforced — one body of work spanning network, cloud, identity and application layers.
How we deliver
Scoping and architecture discovery
We agree the domains in scope — network, cloud, identity, data and application layers — and build an accurate picture of your security design, control framework and technology integrations.
Threat modelling and risk mapping
We model the threats relevant to your business and map them against the architecture, so the review is anchored in the risks you actually carry rather than a generic checklist.
Design and control evaluation
We evaluate trust boundaries, segmentation, identity and access design, data-protection mechanisms and how your controls integrate — identifying structural weaknesses and control misalignments.
Configuration review
We validate that controls are not just present but properly configured, integrated and enforced across firewalls, endpoint protection, SIEM and cloud, surfacing enforcement and governance gaps.
Reporting and improvement roadmap
We deliver an executive summary, a detailed architecture evaluation, a compliance alignment matrix, and a prioritised improvement roadmap ordered by business impact.
Post-remediation validation
After you act on the recommendations, we run a follow-up assessment to confirm the improvements hold and the design risk has genuinely reduced.
What you receive
- Executive summary of key risks and what they mean for the business
- Detailed architecture evaluation with the technical risk analysis behind each finding
- Configuration and control gap analysis across the review
- Threat modelling and risk mapping with documented attack scenarios
- Compliance alignment matrix mapped to the standards you report against
- Prioritised architecture improvement roadmap and governance recommendations
- Post-remediation validation report confirming the improvements hold
Indicative timeline
A typical review runs from about two to four weeks, depending on the number of domains in scope, the complexity of the architecture, and the depth of configuration review required.
Timelines vary with scope; we confirm a schedule after scoping.
Design weaknesses we surface
Across the architecture and its configuration, the review commonly surfaces structural weaknesses such as:
Weak trust boundaries
Poorly defined network zones that let attackers move sideways across critical systems.
Inadequate segmentation controls
Thin internal segmentation and weak isolation between high-value assets and user networks.
Identity and access design flaws
Excessive privileges, weak federation models and poor role separation in identity frameworks.
Misaligned control integration
Gaps between firewalls, endpoint protection, SIEM and cloud controls that blunt detection and response.
Insecure cloud and hybrid design
Loose connectivity models, exposed management interfaces and inconsistent policy enforcement.
Weak data-protection architecture
Thin encryption models, poor key management and weak protection of data in motion.
Monitoring and logging gaps
Incomplete log integration and blind spots in the monitoring architecture that miss real threats.
Single points of failure
Architectural dependencies and control concentrations that put resilience and continuity at risk.
Misaligned compliance architecture
Gaps between the controls implemented and the requirements you are measured against at audit.
Representative engagement
A regulated enterprise scaling into the cloud needed confidence that its security architecture would hold up to audit and support growth without carrying systemic risk. We evaluated its network, cloud and identity design, modelled the relevant threats, ran a configuration review across its integrated controls, and delivered a prioritised improvement roadmap with a compliance alignment matrix — then validated the improvements after remediation. Named client references are available under NDA on request.
Who leads your engagement
Your engagement is led by senior security architects with experience across complex, regulated environments — who translate structural findings into a practical, risk-ordered roadmap. Every report passes independent quality review before it reaches you. All engagements are covered by strict confidentiality and non-disclosure agreements. We introduce your named lead on the first call.
Not sure where you stand on Security architecture review?
Get a free Security architecture review scope and readiness review — share your work email and a senior consultant maps your gaps and next steps. No obligation.
Frequently asked questions
What is a Security Architecture Review?
A Security Architecture Review is a structured evaluation of your security design, control integration and risk alignment across network, cloud, application and identity environments.
How is Security Architecture Review different from penetration testing?
Penetration testing simulates attacks, while Security Architecture Review evaluates the overall security design and structural control effectiveness.
When should an organisation conduct a Security Architecture Review?
During digital transformation, cloud migration, mergers, compliance preparation, or major infrastructure redesign.
What are common gaps identified during reviews?
Weak segmentation, excessive privileges, misaligned controls, insecure integrations and monitoring blind spots.
Which environments does CyberSigma assess?
On-premise infrastructure, cloud platforms, hybrid environments, applications, identity frameworks and integrated security tools.
How long does a Security Architecture Review take?
Typically two to six weeks, depending on scope and architectural complexity.
Does a Security Architecture Review disrupt operations?
No. The process is review based and does not interfere with production systems.
Do you evaluate Zero Trust Architecture?
Yes. We validate your Zero Trust implementation, identity-centric controls and micro-segmentation design.
Can this help with regulatory compliance?
Yes. Our reviews align your architecture with the regulatory frameworks and industry standards you report against.
How detailed is the reporting?
Reports include architectural diagrams, identified gaps, risk ratings and remediation roadmaps, with both executive level insights and detailed technical findings.