Extended Managed
Security Services
Continuous monitoring, proactive detection and real-time response delivered by our 24/7 Security Operations Centre based in Gloucester, England.
Your organisation's first line of defence
Powered by one of the UK’s top-ranked 24/7 Security Operations Centres (SOC), our extended managed security services bring together detection, investigation and response to ensure security risks are identified, contained and addressed as part of day-to-day operations.
Microsoft Sentinel SIEM
Centralise security monitoring, correlate events across your environment, and improve detection through integrated analytics and response workflows.
Services include:
- ✓ Deployment & Configuration
- ✓ Data Connector Onboarding
- ✓ SOAR & Playbook Automation
SOC services
Maintain continuous visibility, detect threats early, and ensure security incidents are investigated and contained in real time.
Services include:
- ✓ Managed Detection & Response (MDR)
- ✓ Extended Detection & Response (XDR)
- ✓ 24/7 Cyber Helpdesk
SentinelOne Endpoint Detection & Response (EDR)
Detect and respond to threats across endpoint environments with real-time visibility and automated containment.
Our service wrap includes:
- ✓ Real-time endpoint monitoring
- ✓ Threat investigation and context
- ✓ Automated containment and remediation
Microsoft Sentinel SIEM
Centralise visibility and strengthen detection across your entire environment
Security visibility is often fragmented across tools, making it difficult to identify threats in context and respond with effect. Our Microsoft Sentinel services bring together data, detection and response workflows into a single operational view through a single Security Information and Event Management (SIEM) platform, ensuring activity can be correlated, investigated and acted on with clarity.
Our service wrap for Microsoft Sentinel includes:

Sentinel deployment & configuration
Security monitoring platforms must be configured around organisational requirements, not deployed as generic environments. Deployment and configuration of Microsoft Sentinel SIEM ensures the architecture, access controls and data strategy needed to support effective monitoring and response are established from the outset.
Data connector onboarding
Visibility improves when the right data is brought together in a structured way. Data connector onboarding brings key log sources into Microsoft Sentinel, ensuring telemetry is relevant, reliable and aligned to real risk without unnecessary cost or noise.
Analytics rules & detection engineering
In Microsoft Sentinel, the quality of detection depends on how effectively threats are identified from available data. Detection engineering refines analytics rules to improve accuracy, reduce false positives and ensure threats can be investigated with confidence.
SOAR & playbook automation
Response processes must be consistent to be effective under pressure. Within Microsoft Sentinel, playbook automation introduces structured workflows that reduce response time and ensure incidents are handled in a controlled and repeatable way.
Workbooks & reporting
Clear reporting is critical to understanding risk across technical and leadership teams. Microsoft Sentinel workbooks provide tailored visibility across performance, threat activity and control effectiveness, enabling stakeholders to act on accurate, current information.
Get in touch about Microsoft Sentinel SIEM
Soc services
Continuous detection and response across your entire environment
Security threats do not follow operating hours, and internal teams are rarely positioned to maintain continuous monitoring and response. Our SOC operates around the clock from Gloucester, with experienced analysts reviewing alerts in context, investigating activity across environments, and responding to confirmed threats as they emerge.
Endpoint Detection & Response (EDR)
Endpoints remain a primary entry point for attack activity, requiring continuous monitoring to identify threats before they propagate. Managed EDR provides 24/7 visibility across workstations, servers and cloud workloads, with alerts reviewed in context and confirmed threats contained at source.
Get in touch →Extended Detection & Response (XDR)
Security signals are often distributed across multiple systems, requiring correlation to identify coordinated attack activity. XDR streamlines telemetry from endpoint, network, identity, email and cloud sources, enabling threats to be investigated as a unified incident rather than as isolated alerts.
Get in touch →Managed Detection & Response (MDR)
Threat detection must be continuous, with the capability to investigate and respond as incidents unfold. MDR delivers 24/7 monitoring, investigation and response across endpoint and infrastructure environments, combining behavioural detection, analyst-led triage and active containment.
Get in touch →Managed Extended Detection & Response (MXDR)
Modern attack surfaces extend beyond endpoints into cloud services and external exposure points, requiring a complete view of attack activity that enables coordinated response across complex, multi-vector environments. MXDR expands detection and response across these domains, incorporating additional telemetry and threat intelligence into a single operational model.
Get in touch →Network Detection & Response (NDR)
Network activity can reveal attack behaviour that is not visible at the endpoint level, particularly within legacy or agentless environments. NDR analyses network traffic to detect anomalous patterns, lateral movement and data exfiltration, providing visibility where endpoint coverage is limited.
Threat Defence
Smaller organisations often lack the in-house capability to continuously monitor and respond to cyber threats as they evolve. This service provides structured threat detection and response across your environment, delivering ongoing visibility, alert handling and expert support to identify and manage security incidents before they escalate.
24/7 Cyber Helpdesk
Security events require timely interpretation and response, yet access to specialist expertise is not always available when incidents arise. Our dedicated 24/7 cyber helpdesk provides direct access to qualified analysts, ensuring alerts are understood, incidents are triaged and managed to resolution, and response remains consistent at all times.
Get in touch →SENTINELONE ENDPOINT DETECTION & RESPONSE
Detect, contain and remediate threats at the endpoint in real time
Endpoints remain a primary entry point for attack activity, requiring continuous visibility and response capability to prevent threats from spreading. SentinelOne delivers real-time detection, investigation and automated containment across endpoints, combining behavioural AI with full attack context to enable faster, more effective response.
Unlike legacy antivirus (AV) and many first-generation EDR products, SentinelOne does not rely on cloud connectivity or signature updates to protect endpoints. CSA Cyber deploys and operates the platform as part of its Managed Detection & Response (MDR) and Managed Extended Detection & Response (MXDR) services, as well as supporting internal teams with configuration, tuning and ongoing optimisation.
Our service wrap for SentinelOne includes:

Deployment & configuration
Establish a stable and effective endpoint protection capability aligned to how your estate operates. Deployment and configuration ensure coverage is applied consistently, with policies and controls set to support detection, response and ongoing operational use.
Detection engineering & tuning
Detection capability only delivers value when alerts reflect meaningful activity rather than noise. Ongoing refinement of detection logic improves signal quality, ensuring relevant threats are surfaced and can be investigated with confidence.
Managed EDR on SentinelOne
Combine automated response with analyst oversight to ensure threats are handled consistently as they arise. Managed operation of the platform enables events to be investigated, validated and responded to without reliance on internal capacity alone.
Threat hunting
Uncovering hidden threats requires visibility beyond standard alerting. Structured hunting activity applies behavioural data and threat intelligence to identify suspicious patterns across the endpoint estate.
Incident Response integration
Effective response depends on access to accurate and complete endpoint data during an incident. Integration of SentinelOne telemetry into response activity enables faster triage, clearer investigation and more informed containment decisions.
Integration & operational alignment
Ensure endpoint telemetry and response capability align with wider security operations. Integration with Security Information & Event Management (SIEM), Security Operations Centre (SOC) and Incident Response (IR) workflows enables SentinelOne to operate as part of a coordinated detection and response strategy.
Platform administration & policy management
Maintain effective control of endpoint protection as environments evolve. Ongoing administration and policy management ensure controls, exclusions and response settings remain aligned to operational requirements and do not drift over time.
WHY CSA CYBER?
Your organisation’s trusted partner in layered cyber resilience
With proven experience across critical sectors and a complete suite of accredited cyber services, CSA Cyber offers a single, trusted partner for protection, validation and continuous improvement.
One partner, multi-layered cyber resilience
A premium suite of accredited services shaped by deep heritage in securing critical sectors and high-profile clients.
Leading the UK for cyber excellence
Our UK-based, security-cleared teams are trusted by clients and validated by recognised industry bodies across the globe.
Engineered for high-security delivery
Our practice is deliberately scaled to combine major-provider capability with specialist-level precision and trust.
Complete cyber assurance starts here
Talk to a specialist about how our premium suite of accredited services can build layered resilience against evolving cyber risk.
