Event Query Language
Full Form of EQL
What is EQL?
Event Query Language (EQL) is a domain-specific query language designed for analyzing and correlating events in real-time data streams. Originally developed by Elastic for use with the Elastic Stack, EQL allows security analysts and IT professionals to write expressive queries that detect patterns, anomalies, and sequences of events across large volumes of logs and telemetry. In India, EQL is increasingly adopted by Security Operations Centers (SOCs) in banks, e-commerce platforms, and government cybersecurity agencies to automate threat detection, incident response, and compliance monitoring. Its syntax is tailored for event-driven environments, making it easier to identify complex attack chains like lateral movement or data exfiltration. EQL queries can filter, aggregate, and compare events over time without needing traditional database joins. For Indian professionals preparing for certifications such as CEH (Certified Ethical Hacker) or Elastic Certified Engineer, understanding EQL is valuable. It is also relevant for roles in cybersecurity, DevOps, and SIEM (Security Information and Event Management) administration. As Indian organizations digitize rapidly, EQL helps security teams keep pace with sophisticated cyber threats while reducing false positives.
EQL का फुल फॉर्म
ईवेंट क्वेरी भाषा
Example
Our SOC team wrote an EQL query to detect multiple failed login attempts followed by a successful login, which helped identify a brute-force attack on the banking application.