Security teams have long depended on SIEM tools as the backbone of threat detection and response. But the threat landscape, and the technology required to defend against it, has changed dramatically.

Rapid7’s new whitepaper, The End of Legacy SIEM and the Rise of Incident Command, examines why legacy SIEM models can no longer keep up with the scale and complexity of modern attacks, and why next-gen SIEMs (like that offered by Rapid7) combined with exposure management capabilities is the better choice in combatting modern enemies.

A turning point for the SOC

When SIEM first emerged, it was a breakthrough. For the first time, organizations could centralize log data, generate compliance reports, and detect threats from a single pane of glass. But two decades later, that approach is showing its age.

Today, data is distributed across cloud, on-prem, and hybrid environments. Adversaries are using artificial intelligence to automate and accelerate increasingly complex attacks that are escaping detection. Analysts are overwhelmed by alert fatigue and unpredictable costs that hamper visibility.

Legacy SIEM tools were built to collect data. They rely on rigid pricing models, static correlation rules, and constant manual upkeep. These systems slow down investigations and prevent analysts from focusing on the alerts that truly matter. Modern attackers exploit exposures faster than human teams can respond. Without automation, context, and clear prioritization, organizations remain in a reactive state. 

What comes after SIEM?

The whitepaper outlines how the security industry is shifting toward a unified approach that combines SIEM, Security Orchestration and Automation (SOAR), Attack Surface Management (ASM), and threat intelligence in one platform, augmented by artificial intelligence.

This new model emphasizes automation, machine learning, and contextual awareness while collecting data from a wider variety of sources than SIEMs were originally designed for. It gives security teams the ability to identify and act on high-impact threats quickly. It also changes how organizations think about risk, focusing less on collecting alerts and more on understanding exposure across assets, identities, and vulnerabilities.

Introducing Rapid7 Incident Command

At the center of this shift is Rapid7 Incident Command, a unified platform that redefines modern detection and response. Trained on trillions of real-world alerts from Rapid7’s 24/7 Managed Detection and Response (MDR) service, Incident Command can accurately classify benign activity 99.93 percent of the time. This precision saves hundreds of analyst hours each week and drastically reduces noise.

Incident Command connects exposure data directly to detection logic, helping analysts see which threats are most likely to impact their organization. Built-in automation enables teams to isolate hosts, revoke credentials, or run response playbooks, while keeping humans in control of every action.

With asset-based pricing and a fast, cloud-based deployment model, organizations can scale visibility and response without the fear of surprise costs or drawn-out implementations.

A new chapter for defenders

Legacy SIEM served its purpose, but it was built for a different era. The modern SOC requires a platform that is unified, intelligent, and focused on outcomes.

The End of Legacy SIEM and the Rise of Incident Command explores how this transformation is reshaping detection and response for security teams everywhere.

Read the full whitepaper to learn why the future of SIEM is already here and how you can take command of what comes next.