Automated threat detection and response using LLM agents

The increase of cyber threats from individual cases to a worldwide problem is the reason why people have shifted their cybersecurity perspectives. Basic defense processes, originally well understood and effective, fail to match modern attacks’ complexity and velocity. Taking into consideration LLMs as a recent addition to AI, this paper aims at discussing their application in integrating threat detection and response automation systems. As a result, LLMs, which have higher capabilities for natural language processing, deliver a revolutionary perspective regarding cybersecurity. Since LLM agents can review massive amounts of security data, distinguish patterns, and create contextually appropriate responses, they can bridge the gap between emerging threats and stable security systems. The paper examines the tools used by LLM agents, such as natural language processing to analyse the logs, contextual anomaly detection, pattern identification in network traffic, and the analysis of the user’s behaviour. Also, it describes how LLM agents can support automated threat handling in the context of threat identification, alert prioritization, context-driven response generation, security policy enforcement, and threat handling. The integration of LLM agents into already known systems, including SIEM systems and AI-Ops platforms, is also considered, which allows for further conclusions on the opportunities to create proactive cybersecurity systems. However, open dilemmas such as adversarial attacks and interpretability are still present, the future for LLM agents in cybersecurity is still bright, and there are more possibilities in multi-modal threat analysis and quantum-safe LLM-based cryptography.