Security Operations
Coordinate Security Response from Detection to Evidence
Bring security incidents, vulnerabilities, threat intelligence and SOC operations into one governed workflow linked to the services they affect.
Security Operations connects detection engineering, threat intelligence and hunting with incident and vulnerability response. MITRE ATT&CK mapping and attack surface management give context; risk exceptions and compliance evidence close the governance loop.
- Detection
- Security incident
- Investigation
- Remediation
- Decision
- Evidence
The enterprise challenge
Alerts are many, context is thin and evidence is manual
SOC analysts move between tools to understand an alert, while vulnerability backlogs grow and auditors ask for proof of remediation.
A security operation is judged twice: once by how quickly it contains a threat, and again — months later — by whether it can prove what it did. Security Operations treats both as the same workflow. Detection content, threat intelligence and asset context arrive with the event; the investigation, containment and remediation steps are recorded as they happen; and the outcome is an explicit decision — closure, corrective change or an owned, time-bound risk exception — rather than a ticket that simply goes quiet.
Context switching
Analysts rebuild the same picture of an asset for every alert.
Endless backlogs
Vulnerabilities are listed by severity, not by business exposure.
Exception sprawl
Accepted risks have no expiry or owner.
Signature view
The Detect–Investigate–Respond Spiral
Security teams prioritize by business impact and produce evidence for risk and regulatory reporting.
The Detect–Investigate–Respond Spiral: a security event tightens from detection to a decided outcome, gaining asset and intelligence context at every turn, with evidence retained throughout. Select a stage to see what is recorded and who decides. Conceptual illustration, not a product screen.
Triage — Severity and scope are set from technique, asset criticality and service dependency.
- Recorded
- Security incident with severity, scope and ATT&CK mapping
- Who decides
- SOC analyst
- Evidence retained
- Triage rationale and alert ranking used
What Security Operations covers
Approved baseline capabilities and the detail restored from the historical module record, labelled by provenance.
- Approved baseline
Incident & vulnerability response
Handle threats and weaknesses.
- Security incidents
- Vulnerability management
- SOC operations
- Approved baseline
Threat intelligence & hunting
Understand adversaries.
- Threat intelligence
- Threat hunting
- Detection engineering
- MITRE ATT&CK catalog
- Approved baseline
Exposure management
See what attackers see.
- Attack Surface Management
- Identity federation and risk analytics
- Approved baseline
Security governance
Prove control.
- Risk exceptions
- Compliance evidence
- Regulatory reporting
- Restored · historical record
Security Incident Management
Manage security incidents with structure and speed.
- Security-specific incident workflows
- Severity classification and escalation
- Containment and eradication tracking
- Forensic evidence collection
- Regulatory notification management
- Restored · historical record
Vulnerability Management
Track and remediate vulnerabilities across the estate.
- Vulnerability scanner integration
- Risk-based prioritization
- Remediation workflow automation
- Patch compliance tracking
- Vulnerability trending and reporting
- Restored · historical record
Threat Intelligence Integration
Enrich operations with external threat context.
- Threat feed integration and correlation
- Indicator of compromise (IoC) tracking
- Threat landscape dashboards
- Intelligence-driven alerting
- Threat intelligence sharing
- Restored · historical record
Security Compliance & Reporting
Demonstrate security posture to stakeholders.
- Security KPI dashboards
- Compliance posture reporting
- Incident trend analysis
- Executive security briefings
- Regulatory evidence packages
Detail reconciled from the approved historical Nexus module record (additive restoration; legacy performance figures excluded per the claims policy).
From detection to evidenced closure
Trigger: A detection rule or intelligence source raises a security event.
Detect
Event from detection or intelligence.
Triage
Context and ATT&CK mapping applied.
Contain
Response actions coordinated.
Remediate
Fixes tracked with owners.
Decide
Close or approve an exception.
Report
Evidence prepared.
- Participants
- SOC analyst
- Incident responder
- Asset owner
- Risk owner
- Work items
- Security incident
- Affected assets
- Remediation tasks
- Risk exception
- Automation
- Enrichment with asset and intelligence context
- Assignment and escalation
- Governance controls
- Exception approval with expiry
- Evidence retained per incident
Outcome: The threat is contained, remediation is tracked and evidence supports reporting.
Severity and scope decisions
Triage sets severity from technique, asset criticality and service dependency rather than alert volume; scope is widened explicitly when correlation links further assets, and each change of scope is recorded.
Containment coordination
Containment actions are coordinated with the asset and service owners they affect; where containment needs an operational change, it is raised through Change Management so security and service records stay consistent.
Vulnerability-to-remediation flow
Scanner findings are matched to configuration items, prioritized by exposure and business impact, and assigned as remediation tasks with owners — patch status rolls back up to the vulnerability record.
Exception discipline
When remediation is not possible in time, the residual risk becomes an exception with an owner, compensating measures and an expiry; expired exceptions return for decision rather than lapsing silently.
Security analytics and reporting
Incident trends, exposure by service and exception status feed security briefings and Analytics Hub, drawing on the same records the analysts work in.
Who decides, and what happens when the path breaks
Every decision in the lifecycle has an accountable owner; automation and AI contribute the support listed, never the decision itself.
Decision rights
Severity and scope
- Decides
- SOC analyst
- Support
- Alert ranking by risk and confidence (recommendation)
Containment approach
- Decides
- Incident responder
- Support
- Configured playbooks for known patterns (workflow-triggered)
Remediate or accept risk
- Decides
- Risk owner
- Support
- Exposure prioritization with business context (recommendation)
Closure and notification
- Decides
- Security lead
- Support
- Investigation summaries of related alerts, assets and intelligence (assistance)
Exception register
Remediation cannot meet its due date
- Handling
- Risk exception raised with compensating measures and an expiry; visible in Risk & Compliance.
- Owner
- Risk owner, with security approval
Incident scope reaches a critical service or data breach threshold
- Handling
- Escalated to Crisis Management with the investigation record attached.
- Owner
- Incident responder / crisis lead
Regulatory notification may be required
- Handling
- Notification decision recorded with the facts known at the time and the notification timeline.
- Owner
- Security lead with legal and privacy owners
Containment needs an operational change
- Handling
- Emergency or standard change raised in Change Management and linked to the security incident.
- Owner
- Change authority
Exception discipline
Accepted risks have owners and expiry dates.
Evidence trail
Investigation and remediation steps are recorded.
Role separation
Access to security records is restricted by role.
Tenant isolation
Records are scoped to the organization's own environment.
Security Operations in practice
Representative situations drawn from common enterprise security, governance and data patterns.
The alert on a server nobody owns
The situation
A detection fires on a host the SOC cannot place: no owner, no service, no idea whether it matters to the business.
With Nexus
Enrichment pulls the configuration item, its owner and the services that depend on it from Asset Management / CMDB, so triage starts with business impact instead of a hunt for context.
The critical vulnerability that cannot be patched yet
The situation
A severe vulnerability affects a system that cannot be patched before a planned release, and the decision to wait is made verbally.
With Nexus
The decision becomes a risk exception with a named owner, compensating measures and an expiry date, visible in Risk & Compliance — and it returns for review automatically when it expires.
The regulator asks for the timeline
The situation
After a contained breach, a regulator requests the sequence of detection, containment and notification decisions.
With Nexus
The security incident record already holds the investigation timeline, containment actions, notification decisions and attached evidence, so the response is assembled from the record rather than reconstructed from chat logs.
Mapped to recognized practice, capability by capability
Each mapping names the Nexus capability and the record that supports the practice. Mappings describe alignment of practice; they are not attestations.
ISO/IEC 27001:2022 · 27002:2022
Compliance-supporting capability- Practice
- Controls 5.24–5.28 — incident management planning, assessment, response, learning and collection of evidence
- Nexus capability
- Detection-to-evidenced-closure workflow with severity classification, containment tracking and forensic evidence collection
- Supporting record
- Security incident record: timeline, containment actions, evidence attachments, lessons learned
NIST CSF 2.0
Aligned practice- Practice
- Detect (DE) and Respond (RS) functions
- Nexus capability
- Detection engineering, triage with intelligence context, coordinated response and reporting
- Supporting record
- Security event, security incident and remediation task records
NIST SP 800-61 Rev. 3
Aligned practice- Practice
- Incident response recommendations organized around the CSF 2.0 functions
- Nexus capability
- Preparation playbooks, detection, containment, remediation and post-incident review stages
- Supporting record
- Security incident record and linked post-incident review
MITRE ATT&CK
Aligned practice- Practice
- Adversary tactic and technique mapping
- Nexus capability
- MITRE ATT&CK catalog applied during triage; detection content mapped to techniques
- Supporting record
- Detection rule and security incident records carry the mapped techniques
How AI supports Security Operations
Response actions are decided by analysts and configured playbooks.
Assistance drafts or summarizesRecommendation proposes for a person to acceptPredictive forecasts or flagsWorkflow-triggered runs only as configured
- Assistance
Investigation summaries
Related alerts, assets and intelligence are summarized for analysts.
- Recommendation
Exposure prioritization
Vulnerabilities are ranked with business context.
- Recommendation
Alert triage
Security alerts are ranked by risk and confidence for analyst review.
- Assistance
Attack correlation
Related security events are linked into a proposed attack narrative for the investigator to confirm.
- Predictive
Anomalous event detection
Unusual security events are flagged for triage based on learned patterns.
- Predictive
Behavioural analysis
Behavioural patterns that may indicate insider risk are surfaced for review under role-restricted access.
- Workflow-triggered
Playbook-driven containment
Containment steps for known threat patterns run only where the security team has configured and approved the playbook.
Why enterprises choose Nexus for security operations
Security and service context in one record
Security incidents link to the same configuration items, services and changes the rest of Nexus manages, so analysts see business impact without a second lookup and service owners see security impact without a second tool.
Every outcome is a decision
An investigation ends in closure, a corrective change or an owned, expiring risk exception — never in silence — and the decision travels to Risk & Compliance as evidence.
Analysts decide, playbooks assist
Enrichment, correlation and prioritization are assistance and recommendation; containment and risk acceptance stay with analysts and the playbooks the security team has configured.
How Security Operations connects
Part of the Data, Governance & Intelligence Function, with relationships across Nexus modules and the wider iShield portfolio.
Incident Management
Coordinates service impact of security events.
Crisis Management
Escalates severe breaches.
Risk & Compliance
Receives exceptions and control evidence.
Asset Management / CMDB
Supplies asset and service context.
Across the portfolio
What changes for the organization
Business-aware priority
Exposure is ranked by impact.
Faster investigation
Context is assembled once.
Controlled risk
Exceptions are owned and reviewed.
Ready evidence
Reporting draws from records.
Where this module is used
