Big data analytics is an emerging technology trend that can bring valuable information from large datasets. It has various characteristics, such as velocity, veracity, and variety. Big data analytics is used to improve cyber security by providing intelligent mechanisms for analyzing relevant security-related data, identifying solutions for security breaches, and enhancing the confidence of analysts. The technology also provides risk management capabilities, including risk identification, assessment, and mitigation. Additionally, big data analytics can increase resistance to attacks by providing timely and accurate actionable decisions, and it can decrease vulnerabilities in existing technology applications.