CTI (Cyber Threat Intelligence): Why and How to Use It

CTI (Cyber Threat Intelligence) is the discipline of collecting, analyzing, and operationalizing information about cyber threats to anticipate attacks and make better security decisions. It transforms raw data from the dark web, past incidents, and technical indicators into actionable intelligence that helps organizations defend themselves proactively.

How does it work?

CTI is organized into three complementary levels that serve different needs within an organization.

Strategic CTI provides a high-level view of the threat landscape. It is aimed at executives and decision-makers, presenting trends, attacker motivations, and sector-specific risks in the form of reports and briefings. For example: “infostealers are increasingly targeting the European financial sector.”

Operational CTI focuses on ongoing attack campaigns and the tactics, techniques, and procedures (TTPs) used by threat actors. It helps security teams understand how attacks are conducted and adapt their defenses accordingly.

Tactical CTI produces concrete indicators of compromise (IOCs): malicious IP addresses, file hashes, command-and-control domains, and compromised credentials. These indicators directly feed security tools (SIEM, EDR, firewall) to block known threats.

CTI sources include commercial intelligence feeds, sharing communities (ISACs), incident reports, OSINT (open-source intelligence), and dark web monitoring.

Why does it matter?

Without CTI, security teams operate in reactive mode, discovering threats only after a successful attack. CTI enables a shift from a defensive posture to a proactive one, identifying risks before they materialize.

According to Gartner, over 50% of mid-sized enterprises will integrate some form of threat intelligence into their security strategy by 2027. This growing adoption is driven by the increasing complexity of the threat landscape and the availability of CTI tools accessible to SMBs.

CTI is particularly valuable for prioritizing security investments, contextualizing alerts generated by detection tools, and responding faster to incidents by understanding the attacker’s modus operandi.

How Stealed protects you

Stealed operates as a tactical CTI source by providing concrete indicators of compromise: credentials stolen by infostealers, detected in real time from dark web sources. This data directly feeds your incident response process.

The platform integrates with your existing security stack via API and webhooks, sending alerts to your SIEM, SOAR platform, or Slack/Teams channels for immediate action.

Learn more: read our comprehensive guide to Cyber Threat Intelligence for an in-depth analysis of CTI levels and practical use cases for businesses.

Start monitoring for free to integrate compromised credential detection into your CTI strategy.