Who is UnderDefense?
UnderDefense is a cybersecurity services provider focused on Managed Detection and Response (MDR), incident response, and Security Operations (SecOps) for enterprises and other organizations.
- MDR services (MDR) for continuous monitoring, threat detection, and incident handling.
- Incident response and digital forensics services for containment, eradication, and recovery after security breaches.
- SecOps center (SOC) as a service, including log analysis, alert triage, and threat hunting.
- Security assessments and advisory services, including penetration testing, vulnerability assessments, and security posture reviews.
- Cloud and infrastructure security services aligned with common enterprise architectures and compliance requirements.
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More About UnderDefense
UnderDefense provides cybersecurity services oriented toward organizations that require external support for threat detection, incident response, and SecOps. Its portfolio centers on MDR (security operations) and SOC-as-a-service (security operations), where UnderDefense teams monitor customer environments, analyze security telemetry, and respond to detected threats. These services target enterprises that operate complex hybrid infrastructure and need 24x7 monitoring without building or expanding an internal SOC.
In MDR and SOC engagements, UnderDefense typically integrates with existing customer tooling in areas such as Endpoint Detection And Response (EDR) (endpoint security), Security Information and Event Management (SIEM) (security analytics), and cloud security monitoring (cloud security). The company ingests logs and events from operating systems, network devices, cloud platforms, and business applications, correlating them against detection rules and threat intelligence sources. Security analysts then triage alerts, perform threat hunting, and coordinate containment actions, such as isolating endpoints, blocking network traffic, or enforcing updated access controls.
UnderDefense also offers incident response and digital forensics (incident response) for organizations facing active security incidents or data breaches. These services cover scoping of attacks, identification of affected systems and accounts, Root Cause Analysis (RCA), and support for recovery planning. Work products often include incident timelines, evidence collection from endpoints and servers, and technical recommendations for hardening. Engagements can be structured as emergency response or as retainer-based services for organizations that want predefined access to response teams.
Security assessment and advisory services (security consulting) from UnderDefense include penetration testing, red teaming, vulnerability assessments, and broader security posture reviews. These engagements evaluate application and infrastructure security controls, identify misconfigurations and vulnerabilities, and map findings to remediation plans. Assessments typically reference widely used security frameworks and standards, such as the NIST Cybersecurity Framework, ISO/IEC 27001, and common vulnerability scoring systems (e.g., Common Vulnerability Scoring System (CVSS)), to help enterprises align their programs with recognized practices.
For cloud and infrastructure security (cloud security, infrastructure security), UnderDefense supports customers running workloads on public cloud providers, private clouds, and on-premises (on-prem) environments. Services may involve configuration reviews of cloud accounts, identity and access management policies, network segmentation, and monitoring architectures. By combining MDR, SOC-as-a-service, incident response, and security assessments, UnderDefense positions itself for directory categorization primarily in Managed Security Services (MSS), incident response services, and security consulting for mid-size and large enterprises that require external SecOps capabilities and expertise.
Our description of UnderDefense. Updated December 2025.
