Implementing Threat Intelligence Lifecycle Management

Overview

The threat intelligence lifecycle is a structured, iterative process for transforming raw data into actionable intelligence. Based on the intelligence cycle used by military and government agencies, it comprises six phases: Direction (requirements gathering), Collection (data acquisition), Processing (normalization and deduplication), Analysis (contextualization and assessment), Dissemination (distribution to stakeholders), and Feedback (evaluation and refinement). This skill covers building each phase with tooling, metrics, and integration points for a mature CTI program.

Prerequisites

• Python 3.9+ with pymisp, stix2, requests, pandas libraries
• MISP or OpenCTI as threat intelligence platform
• Ticketing system (Jira, ServiceNow) for requirements management
• SIEM integration (Splunk, Elastic) for indicator operationalization
• Understanding of intelligence analysis techniques (ACH, Diamond Model)

Key Concepts

Intelligence Requirements (IR)

Priority Intelligence Requirements (PIRs) define what the organization needs to know. Examples: Which threat actors target our sector? What vulnerabilities are being actively exploited? Are our brand or credentials being traded on dark web? PIRs drive collection planning and ensure intelligence production is relevant.