Insider Threat Intelligence

Overview#

A senior engineer at an aerospace company begins accessing technical specifications for programmes outside her project scope. Over six weeks, access frequency increases, document downloads spike, and she initiates contact with a recruiter at a competitor. No single action is disqualifying. Taken together, the pattern is unmistakable. Argus Insider Threat Intelligence is designed to surface patterns like this before they become incidents, rather than investigations.

The platform provides insider threat detection and investigation capabilities for identifying behavioural anomalies, data exfiltration, privilege abuse, and internal misconduct. By correlating signals across multiple data sources, it detects subtle indicators that would be invisible when examining any single system in isolation.

Building an effective insider threat programme requires balancing security vigilance with employee privacy and organisational trust. The platform provides the framework for this balance through configurable monitoring policies, privacy controls, and transparent governance tools.

Open Standards#

• MITRE ATT&CK: Behavioural signals and detected attack patterns are classified and labelled using ATT&CK technique identifiers (e.g. T1041 Data Exfiltration, T1068 Privilege Escalation), enabling consistent TTP mapping across investigations.
• OASIS STIX 2.1 / TAXII 2.1: Threat indicators linked to insider threat subjects are ingested from and exported to STIX 2.1 bundles; automated polling of TAXII 2.1 feeds enriches the external intelligence cross-reference capability.
• UEBA (User and Entity Behaviour Analytics): The risk-scoring engine conforms to the UEBA paradigm, pseudonymising user entities, computing weighted behavioural signals across SIEM streams and HR sources, and gating de-anonymisation behind a risk threshold with a full audit trail.
• POLE Data Model: Investigation subjects, locations, digital objects, and observed events are structured according to the UK policing POLE (Person, Object, Location, Event) framework, enabling consistent entity correlation across insider threat cases.
• ISO/IEC 27037:2012: Evidence collected during insider threat investigations is packaged in accordance with this standard for the identification, collection, acquisition, and preservation of digital evidence to support legal admissibility.
• Common Event Format (CEF) and Log Event Extended Format (LEEF): SIEM event normalisation rules accept raw data in CEF and LEEF wire formats, allowing direct ingestion from ArcSight, QRadar, and compatible log sources without pre-conversion.
• OASIS CACAO v2.0: Response playbooks triggered by high-risk insider threat alerts are authored and executed as CACAO v2.0 documents, with OpenC2 command execution enabling automated containment actions.
• NIST SP 800-53 Rev 5: Programme management controls, monitoring policies, and audit trail requirements align to NIST 800-53 control families (AC, AU, SI) to support compliance documentation for government-mandated insider threat programmes.

Last Reviewed: 2026-02-09 Last Updated: 2026-04-14

Key Features#

Detection and Analysis#

• Behavioural anomaly detection using machine learning to identify deviations from normal user patterns
• Data exfiltration monitoring across email, cloud, removable media, and network channels
• Privilege monitoring tracking access to sensitive systems and data beyond legitimate job requirements
• Internal misconduct detection identifying policy violations, fraud indicators, and collusion patterns
• Risk scoring combining multiple threat indicators into prioritised alerts for investigation
• Communication analysis detecting unusual patterns in email, messaging, and collaboration platforms
• Financial stress indicator monitoring through voluntary disclosure and observable behavioural changes
• Foreign contact and travel pattern analysis for personnel with access to sensitive information

Investigation Tools#

• User activity timeline reconstruction for investigation and evidence documentation
• Peer group comparison identifying behaviours that deviate significantly from similar role profiles
• Integration with physical security systems for correlated digital and physical access analysis
• Investigation workflow tools with evidence collection, documentation, and case management
• Forensic data preservation ensuring investigation evidence meets legal admissibility standards
• Interview and subject assessment support with behavioural indicator documentation
• Sentiment analysis of internal communications for early indicators of disgruntlement or radicalisation
• Workplace violence risk assessment tools integrated with insider threat behavioural indicators

Programme Management#

• Privacy controls ensuring monitoring activities comply with legal and policy requirements
• Reporting and analytics for insider threat programme effectiveness and trend analysis
• Risk assessment frameworks for evaluating organisational insider threat exposure
• Policy management tools for defining and updating monitoring scope and thresholds
• Training and awareness management for insider threat programme education
• Regulatory compliance documentation for government-mandated insider threat programmes

Threat Indicator Management#

• Indicator catalogue with customisable behavioural, digital, and contextual threat indicators
• Indicator weighting and tuning based on organisational context and threat environment
• False positive analysis tools for refining detection rules and reducing analyst fatigue
• Threat scenario modelling for evaluating detection coverage against known insider attack patterns
• Cross-reference with external threat intelligence for indicators of foreign intelligence targeting
• Whistleblower programme integration distinguishing legitimate reporting from threat indicators
• Automated reporting generating programme metrics, incident summaries, and trend analysis for leadership

Use Cases#

Proactive Threat Detection. Identify insider threats before they cause damage through behavioural analytics that detect anomalous access patterns, data handling, and communication behaviours indicating malicious intent or compromise. Enable early intervention through proactive monitoring and risk scoring.

Investigation Support. When insider threats are suspected, provide investigators with comprehensive user activity timelines, evidence collection tools, and case documentation capabilities. Build thorough investigation packages that support organisational action and legal proceedings.

Compliance Monitoring. Detect policy violations, unauthorised access, and regulatory compliance failures through automated monitoring and alerting across enterprise systems. Maintain documentation demonstrating compliance with monitoring requirements and organisational policies.

Insider Threat Programme Management. Build and manage an enterprise insider threat programme with risk assessments, monitoring policies, investigation workflows, programme effectiveness metrics, and continuous improvement processes. Meet government mandates for insider threat programmes in classified environments.

Supply Chain Risk. Monitor insider threat risks across the supply chain including contractors, vendors, and partner organisations with access to sensitive systems or information. Extend behavioural monitoring to third-party personnel with appropriate governance controls.

Integration#

• Connects with identity and access management systems for user context and authorisation data
• Integrates with SIEM and security monitoring platforms for correlated threat detection
• Links to HR systems for employment context, organisational data, and workforce lifecycle events
• Works with physical security and access control systems for behavioural correlation
• Supports case management and investigation workflows for coordinated response
• Compatible with data loss prevention systems for comprehensive data protection monitoring
• Feeds into organisational risk dashboards for executive insider threat awareness
• Supply chain personnel monitoring extending threat awareness to third-party contractors
• Pre-employment screening integration identifying risk factors during hiring process
• Connects with security operations centres for coordinated incident response
• Supports programme maturity assessment tools for continuous insider threat programme improvement