Threat intelligence is information about threats that helps defenders make better decisions. It comes from many sources. Open-source feeds collect indicators from public reports. Commercial vendors sell curated intelligence with context. Industry groups share information among members. Government agencies publish advisories. The raw data includes IP addresses, domain names, file hashes, and attacker tactics. The value is in the analysis. An IP address alone is not intelligence. Knowing that the IP belongs to a ransomware group targeting healthcare providers is.

Intelligence comes in levels. Strategic intelligence informs executives about the threat landscape. Operational intelligence helps security managers plan defenses. Tactical intelligence gives analysts specific indicators to block. Technical intelligence provides the raw data for tools. Each level serves a different audience. The challenge is volume. There is too much threat data and not enough context. Feeding every indicator into a firewall creates false positives and blocks legitimate traffic. Effective intelligence programs focus on relevance. What threats matter to this organization? What sectors are targeted? What techniques are used? The answers shape what to collect and what to ignore. Intelligence is not about knowing everything. It is about knowing what matters.

Threat intelligence types

• Strategic — high-level trends for decision makers
• Operational — campaign details for security managers
• Tactical — indicators for detection and blocking
• Technical — raw data for tools and automation

Threat intelligence is only useful if it changes a decision. Data that sits in a feed and never informs action is just noise.