Which aspect of QRadar helps improve incident response?

The aspect of QRadar that significantly improves incident response is the aggregation of historical data. Having access to historical data allows security analysts to conduct thorough investigations into past incidents, identifying patterns, trends, and anomalies that may not be evident from real-time data alone. This deep knowledge can help in understanding the context of an incident, such as the methods and tactics used by attackers over time.

When security teams can analyze historical data, they can make informed decisions about how to respond to current incidents based on prior occurrences and outcomes. This comprehensive insight also enables better threat intelligence by linking past and present threats, thus enhancing overall situational awareness and the effectiveness of the response.

In contrast, while real-time data processing is essential for immediate detection and alerting, it is the context provided by historical aggregation that equips teams with the necessary tools to respond effectively. Similarly, increased storage capacity supports the accumulation of historical data, but it does not inherently improve incident response without the analytical processes in place. Limiting user access levels is an important security practice; however, it does not directly correlate with the ability to respond to incidents. Thus, the aggregation of historical data stands out as the most impactful factor for improving incident response in QRadar.