TPFP TI study materials
TPFP TI study resources

TPFP TI key terms

TPFP TI · Get comfortable with the vocabulary.

Threat Intelligence

Evidence-based knowledge about existing or emerging threats, including context, mechanisms, indicators, and implications, that supports decisions about how to respond to that threat.

Related: Intelligence Cycle, Indicators of Compromise, Actionable Intelligence
Intelligence Cycle

The repeating process of planning requirements, collecting data, processing it, analyzing it into intelligence, and disseminating the result to decision-makers, then feeding feedback into the next round.

Related: Requirements Management, Threat Intelligence, Dissemination
Tactical Threat Intelligence

Intelligence focused on immediate adversary behaviors and technical artifacts, such as hashes, IP addresses, and malware signatures, used to detect and block attacks in the short term.

Related: Indicators of Compromise, Operational Threat Intelligence, Pyramid of Pain
Operational Threat Intelligence

Intelligence describing specific campaigns, actor tools, infrastructure, and intent, helping defenders understand how and why an adversary operates against their sector or organization.

Related: Tactical Threat Intelligence, Strategic Threat Intelligence, Threat Actor
Strategic Threat Intelligence

High-level intelligence about long-term threat trends, adversary capability, and risk to the organization, written for executives and used to guide investment and policy decisions.

Related: Operational Threat Intelligence, Threat Landscape, Intelligence Requirements
Intelligence Requirements

Documented questions or priorities that define what decision-makers need to know, guiding collection and analysis so that limited resources target the most relevant threats.

Related: Priority Intelligence Requirements, Intelligence Cycle, Collection Plan
Priority Intelligence Requirements

The subset of intelligence requirements judged most critical to leadership decisions, ranked so collection and analysis effort is directed at the questions that matter most now.

Related: Intelligence Requirements, Collection Plan
Indicators of Compromise

Observable technical artifacts such as file hashes, domain names, IP addresses, or registry keys that suggest a system may have been breached or malicious activity occurred.

Related: Indicators of Attack, Pyramid of Pain, Traffic Light Protocol
Indicators of Attack

Observable signs of active adversary behavior or intent during an intrusion, such as unusual process chains or lateral movement patterns, which are harder for attackers to change than static artifacts.

Related: Indicators of Compromise, Behavioral Detection, Pyramid of Pain
Pyramid of Pain

A model ranking indicator types by how much difficulty an adversary faces when forced to change them, from easy-to-change hashes at the base to hard-to-change tactics and techniques at the top.

Related: Indicators of Compromise, MITRE ATT&CK, Tactics, Techniques, and Procedures
Open Source Intelligence

Information gathered from publicly available sources such as websites, social media, government records, and news, collected and analyzed while respecting legal and privacy constraints.

Related: Closed Source Intelligence, Human Intelligence, Web Scraping
Closed Source Intelligence

Threat data obtained from restricted or paid sources, such as commercial feeds, vendor reports, information-sharing communities, or internal telemetry not available to the general public.

Related: Open Source Intelligence, Information Sharing and Analysis Center, Threat Intelligence Platform
Human Intelligence

Information collected through human interaction, such as interviews, trusted peer contacts, or underground community sources, often providing context that automated collection cannot supply.

Related: Open Source Intelligence, Underground Forum Monitoring
Honeypot

A deliberately exposed decoy system or service designed to attract attackers so their activity, tools, and infrastructure can be observed and recorded for intelligence purposes.

Related: Honeynet, Malware Sandbox, Indicators of Compromise
Malware Sandbox

An isolated environment where suspicious files are executed and monitored, capturing behavior such as file changes, network connections, and persistence mechanisms for analysis.

Related: Dynamic Analysis, Static Analysis, Honeypot
Static Analysis

Examining a file or binary without running it, using techniques such as string extraction, header inspection, and disassembly to identify capabilities and potential malicious traits.

Related: Dynamic Analysis, Malware Sandbox, Indicators of Compromise
Dynamic Analysis

Observing a sample while it executes in a controlled environment, recording its runtime behavior, network traffic, and system modifications to understand what it actually does.

Related: Static Analysis, Malware Sandbox
Diamond Model of Intrusion Analysis

An analytic framework describing every intrusion event through four linked vertices: adversary, capability, infrastructure, and victim, used to find relationships and pivot between related events.

Related: MITRE ATT&CK, Threat Actor, Campaign
MITRE ATT&CK

A publicly maintained knowledge base of adversary tactics and techniques observed in real intrusions, organized by platform and used to structure detection, hunting, and threat assessment.

Related: Tactics, Techniques, and Procedures, Pyramid of Pain, Cyber Kill Chain
Cyber Kill Chain

A seven-stage model of an intrusion, from reconnaissance and weaponization through exploitation, installation, command and control, and actions on objectives, used to plan defenses at each stage.

Related: MITRE ATT&CK, Tactics, Techniques, and Procedures
Tactics, Techniques, and Procedures

The behavioral description of an adversary: high-level goals (tactics), general methods used to achieve them (techniques), and the specific detailed implementations observed (procedures).

Related: MITRE ATT&CK, Threat Actor, Behavioral Detection
Threat Actor

An individual or group conducting malicious activity, described by attributes such as motivation, capability, resources, and targeting, which help predict future behavior.

Related: Advanced Persistent Threat, Campaign, Attribution
Advanced Persistent Threat

A well-resourced actor that conducts prolonged, stealthy intrusions with custom tooling and sustained command and control, typically pursuing espionage or strategic objectives rather than quick profit.

Related: Threat Actor, Command and Control, Campaign
Campaign

A set of related malicious activities conducted by the same actor over a period, sharing infrastructure, tooling, or targeting, and tracked as a single analytic object.

Related: Threat Actor, Attribution, Diamond Model of Intrusion Analysis
Attribution

The analytic judgment assigning an activity to a specific actor or group, expressed with an explicit confidence level because evidence is often incomplete or deliberately deceptive.

Related: Confidence Level, Threat Actor, Campaign
Confidence Level

A stated estimate of how strongly the available evidence supports an analytic judgment, allowing consumers to weigh intelligence appropriately rather than treating all conclusions as equally certain.

Related: Attribution, Structured Analytic Techniques
Structured Analytic Techniques

Formal methods such as key assumptions checks, alternative competing hypotheses, and devil's advocacy that reduce cognitive bias and improve rigor in intelligence judgments.

Related: Analysis of Competing Hypotheses, Confidence Level, Cognitive Bias
Analysis of Competing Hypotheses

A structured technique that lists plausible explanations for observed activity and evaluates evidence against each, seeking to disprove hypotheses rather than confirm a favored one.

Related: Structured Analytic Techniques, Cognitive Bias, Attribution
Cognitive Bias

A systematic pattern of deviation from rational judgment, such as confirmation or anchoring bias, that can distort threat analysis and must be actively mitigated.

Related: Structured Analytic Techniques, Analysis of Competing Hypotheses
Traffic Light Protocol

A sharing convention using color markings (red, amber, green, clear) to tell recipients how far shared information may be redistributed, protecting sensitive sources and relationships.

Related: Information Sharing and Analysis Center, Indicator Sharing, Data Handling Policy
Information Sharing and Analysis Center

A sector-based or regional community where members exchange threat information and best practices under agreed handling rules, often supported by a trusted automated exchange platform.

Related: Traffic Light Protocol, Closed Source Intelligence, Machine-Readable Threat Intelligence
Machine-Readable Threat Intelligence

Threat data formatted in a structured, standardized way, such as STIX, so tools can automatically ingest, correlate, and act on it without manual interpretation.

Related: STIX, TAXII, Threat Intelligence Platform
STIX

A structured, standardized language for representing cyber threat information as objects and relationships, enabling consistent exchange of indicators, actors, and campaigns between tools.

Related: TAXII, Machine-Readable Threat Intelligence
TAXII

A standardized protocol for transporting and exchanging cyber threat information between servers and clients, commonly used to distribute STIX data in an automated, authenticated way.

Related: STIX, Threat Intelligence Platform
Threat Intelligence Platform

A system that aggregates, normalizes, correlates, and scores threat data from multiple sources, then distributes actionable intelligence to security controls and analysts.

Related: Machine-Readable Threat Intelligence, Indicator Enrichment, Security Information and Event Management
Indicator Enrichment

Adding context to a raw indicator, such as geolocation, WHOIS data, malware family, or first-seen date, so analysts can judge its relevance and reliability before acting.

Related: Threat Intelligence Platform, False Positive, Indicators of Compromise
False Positive

An alert or indicator that appears malicious but is actually benign, which can waste response effort and erode trust if not measured and tuned.

Related: Indicator Enrichment, Tuning, Indicators of Compromise
Tuning

Adjusting detection rules, feed selections, and scoring thresholds to reduce noise and false positives while preserving coverage of the threats that matter to the organization.

Related: False Positive, Indicator Enrichment
Threat Hunting

A proactive, hypothesis-driven search through networks and endpoints for signs of compromise or adversary activity that existing automated detection has not caught.

Related: Behavioral Detection, Indicators of Attack, MITRE ATT&CK
Behavioral Detection

Identifying malicious activity by the patterns of behavior it produces rather than by fixed artifacts, making detection more resilient to attackers changing hashes or infrastructure.

Related: Indicators of Attack, Threat Hunting, Tactics, Techniques, and Procedures
Security Information and Event Management

A platform that collects, correlates, and alerts on log and event data from across the environment, serving as a primary consumer of tactical threat intelligence feeds.

Related: Threat Intelligence Platform, Indicator Enrichment
Operational Security

Practices that protect an organization's own sensitive data, sources, and investigation methods from disclosure, including compartmentalization, secure communications, and careful attribution handling.

Related: Data Handling Policy, Traffic Light Protocol, Attribution
Data Handling Policy

Documented rules governing how threat information is classified, stored, accessed, shared, and destroyed, ensuring legal compliance and protection of sensitive sources.

Related: Traffic Light Protocol, Operational Security, Personal Data Protection
Personal Data Protection

Legal and ethical obligations to limit collection, use, and retention of information about identifiable individuals encountered during threat research, such as victim or employee details.

Related: Data Handling Policy, Ethical Collection
Ethical Collection

Gathering threat data within legal and ethical boundaries, avoiding unauthorized access to systems, entrapment, or harm to third parties while pursuing investigative objectives.

Related: Personal Data Protection, Operational Security, Open Source Intelligence
Underground Forum Monitoring

Observing criminal marketplaces and forums, often with controlled personas and legal oversight, to learn about leaked data, tooling, and planned attacks against the organization.

Related: Human Intelligence, Ethical Collection, Threat Actor
Command and Control

The infrastructure and channels an attacker uses to communicate with compromised systems, issue instructions, and exfiltrate data, often disguised as normal traffic.

Related: Advanced Persistent Threat, Indicators of Compromise
Honeynet

A network of interconnected honeypots and supporting sensors deployed to observe attacker behavior across multiple services and gather richer intelligence than a single decoy.

Related: Honeypot, Indicators of Compromise
Collection Plan

A documented schedule of which sources will be used, what data will be gathered, and how often, aligned to intelligence requirements so collection effort stays focused and auditable.

Related: Intelligence Requirements, Priority Intelligence Requirements, Open Source Intelligence
Dissemination

Delivering finished intelligence to the right consumers in a usable format and timely manner, with handling restrictions and feedback channels to confirm it meets their needs.

Related: Intelligence Cycle, Traffic Light Protocol, Threat Intelligence Report
Threat Intelligence Report

A written product presenting findings, evidence, and judgments for a defined audience, typically including key judgments, technical detail, confidence statements, and recommended actions.

Related: Dissemination, Confidence Level, Strategic Threat Intelligence
Actionable Intelligence

Intelligence specific enough, timely enough, and contextualized enough that a defender can take a concrete action, such as blocking, hunting, or patching, based on it.

Related: Threat Intelligence, Indicators of Compromise, Dissemination
Threat Landscape

The overall picture of threats relevant to an organization or sector at a given time, including prevalent actors, attack methods, and targeted industries.

Related: Strategic Threat Intelligence, Threat Actor
Web Scraping

Automated extraction of data from websites for collection purposes, which must respect site terms, rate limits, and legal constraints on the data gathered.

Related: Open Source Intelligence, Ethical Collection