Understanding Indicators of Compromise and Their Role in Cybersecurity

This article provides an overview of Indicators of Compromise (IOCs)—what they are, common categories and examples (network, host/endpoint, user/account, email, and data exfiltration), their role in threat intelligence and incident response, and their limitations; it also contrasts IOCs with Indicators of Attack (IOAs) and recommends combining IOCs with behavioral analytics and advanced detection (EDR/MDR) for effective security operations.