Building resilient security starts with a strong architectural foundation and a clear understanding of risk. Our security architecture and risk modelling services help organisations design secure, scalable environments tailored to their operational needs.Â
We assess existing systems, identify vulnerabilities, and model potential threats to guide strategic decision-making. By aligning security architecture with business objectives and regulatory requirements, we enable proactive risk management and long-term resilience across IT and OT landscapes.
Secolve’s architectural design reviews take an offensive security approach to evaluating the design and structure of IT and OT environments. We assess architectural components as an attacker would, identifying potential exploitation paths, weak segmentation boundaries, exposed services, misconfigured trust relationships, and architectural decisions that could enable lateral movement or privilege escalation.Â
The review focuses on uncovering high-value targets, and indirect attack surfaces (e.g. poorly segmented VPNs, flat internal networks, or exposed management interfaces) that could be leveraged in a real-world attack. By analysing network diagrams, firewall rules, identity and access flows, and inter-system dependencies through an adversarial lens, we provide actionable insights to harden environments before those weaknesses are exploited.
Secolve’s threat modelling & attack tree development service offers a structured, non-intrusive, paper-based assessment that identifies how adversaries could exploit weaknesses to compromise critical systems and operations. This approach is particularly valuable for sensitive OT and safety-critical environments where intrusive testing is not feasible.
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Through collaborative workshops and analysis of system designs, network diagrams, workflows, and access pathways, we simulate the attacker’s perspective to identify potential entry points, escalation paths, and high-value targets across IT and OT environments. Using structured methodologies, we develop detailed attack trees that visually map out how multi-step attack scenarios could unfold and what conditions or vulnerabilities may enable them.
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The benefit of this approach is early visibility into cyber risks without impacting live systems, making it ideal during project planning, system upgrades, or when testing access is restricted.
Secolve’s security configuration reviews assess the security posture of systems, applications, and devices by analysing their configurations through an offensive security lens. These reviews focus on identifying exploitable misconfigurations, insecure defaults, excessive privileges, exposed services, and weak access controls that could be leveraged by attackers during a compromise. Common targets include Windows and Linux servers, Active Directory environments, endpoint workstations, SCADA systems, PLCs, network infrastructure, and cloud assets.
This service is widely adopted in OT environments due to its non-intrusive nature, making it ideal for assessing systems that are sensitive to downtime or operational disruption. By avoiding active exploitation or scanning, Security Configuration Reviews provide deep visibility into security weaknesses without impacting availability or performance making it especially valuable for safety-critical or production systems.
Assessments include detailed analysis of group policies, system settings, access control configurations, and authentication mechanisms, benchmarked against standards such as the Essential Eight, CIS Benchmarks, or vendor-specific hardening guidance.
Our asset discovery and inventory service provides organisations with clear visibility into all connected assets across IT and OT environments. This includes cataloguing workstations, servers, networking devices, field controllers, HMIs, PLCs, and other industrial or unmanaged devices that may operate without central oversight.
Our approach combines non-intrusive methods such as reviewing configuration data, analysing network communications, and deploying passive monitoring solutions including the use of network taps, span ports, and mirrored traffic collectors to identify assets without disrupting critical operations. Where appropriate and safe, lightweight active probing may be used in less sensitive segments to enhance coverage.
This service helps organisations uncover undocumented assets, insecure remote access points, and legacy devices that pose hidden risks. Establishing a current and accurate asset inventory enables better-informed security decisions, risk prioritisation, and incident preparedness across both enterprise and operational environments.
