From Practice to Proof: Be Ready for Actual Threats by Exercising in Your Real-World SIEM

Back when I was on the offensive side of security, one of the most frustrating things to see was a blue team that had all the right tools but no real practice using them under pressure. There was a critical disconnect between their tech investment and their actual readiness.

Frankly, a lot of cyber range training for SOC teams today feels that way. It's often just a bundle of log injections that aren't merely pre-canned, but instead showcase pentester tools and Indicators of Compromise (IOCs), masquerading as genuine threat actor actions within a generic, sterile environment. As a result, the blue team is typically not responding to the actions and unique artifacts of a live threat actor, but rather to a simulated attack generated by a pentester using inaccurate methodologies and tooling.

If you’re a SOC Manager and that’s your exercising toolkit, how can you be confident your team is ready to handle live fire? Traditional "practice" doesn't prove to you (or to your leadership) that they can successfully navigate your Splunk or Elastic instance during a full-chain attack. It doesn’t test their ability to do the fundamentals—detection, investigation, and response—inside their own everyday environment.

What if your team could practice their response under the same conditions they would face during a real incident? What if you could run them through live-fire attacks in a safe, high-fidelity replica of your network, using your tools?

Whenever I raise the possibility with customers, the response is uniformly, “Tell me more…”

Meet Dynamic Threat Range: An Innovative Approach to Range Exercising, Now Available on Immersive One

Dynamic Threat Range equips your security operations team to run live-fire attacks in a safe, simulated enterprise environment that mimics your specific tool stack. This is the only live-fire capability on the market built to exercise your team on real threats, in real time, using their own licensed SIEMs—starting with Splunk and Elastic.

Built on an Infrastructure-as-Code foundation, this new capability provides 100% browser-based access (no VPN needed) to a hyper-realistic environment. It allows teams to exercise the full investigation, digital forensics, and threat hunting lifecycle, just as they would during a real incident.

Prove Readiness and Maximize Your Tool Investment

There’s a lot under the hood now, and there’s even more coming. 

Using the Dynamic Threat Range capability on Immersive One means you’ll finally be able to:

• Validate Skills in a Realistic Environment: With Immersive One’s approach, users quickly transition from guessing what their teams can handle to total certainty. That’s because you run your team through live-fire exercises in a high-fidelity replica of an enterprise network and SIEM.
• Measure Performance Objectively: Since generic "pass/fail" grades don't provide actionable data for managers, we level up the analytics from day one. With Immersive One, you can expect critical performance metrics, like "Time to Detect" and "Time to Respond," for every exercise, giving you objective proof of improvement.
• Target Specific Skill Gaps: Our ultimate goal is to enable users to stop relying on generic, one-size-fits-all training that doesn't align with their unique risks. Dynamic Threat Range will use modular exercises based on real-world adversary TTPs to identify and remediate the specific gaps in your team's procedures and skills.
• Benchmark Team Readiness: Of course, it's hard to know "what good looks like" in a vacuum. That’s why Dynamic Threat Range lets you finally compare your team's performance against internal peers; in the near future, you’ll also find anonymized industry averages, setting a clear, objective baseline for readiness.

We’ll also be expanding our native SIEM support in the coming months. We’re on track to deliver Microsoft Sentinel support in Q1 2026.

A Powerful New Engine for Immersive One Resilience

Organizational resilience breaks down when there is a gap between training, tools, and real-world operations. SOC Managers are left with useless metrics and CISOs cannot be confident in their team's ability to respond.

The Immersive One platform was built to solve this. It is the only platform that orchestrates the entire human readiness lifecycle, proving your teams, tools, and processes are prepared for any threat.

Dynamic Threat Range is a powerful extension of this promise. In fact, it’s the engine that proves your people and processes are effective inside your specific tool stack. It definitively moves your team from theoretical knowledge to provable, hands-on proficiency.

In security, the only thing that matters is what your team can do in a real crisis. Stop practicing in a classroom and start proving their skills on your real stack.

Explore the Possibilities

• Already working with Immersive? Let’s discuss how you can enable this capability for your team. Contact your Customer Success Manager to get started.
• Exploring Immersive for the first time? Discover how the Immersive One platform equips you to prove and improve your security posture. Book a demo today.Da