CTIS + Splunk: What It Really Takes to Operationalise Threat Intelligence

Australia’s cyber defence posture is evolving quickly. With the Australian Signals Directorate (ASD) rolling out the Cyber Threat Intelligence Sharing (CTIS) service, we are seeing a shift from siloed threat feeds to real-time, two-way intelligence sharing between government and industry.

It is a bold move and one worth acknowledging. The Australian Government is leading the charge in building a safer digital Australia, not just through policy, but through practical, operational tools like CTIS. It is a model other nations are watching closely.

For Splunk customers, this is not just another integration. It is a chance to turn threat intelligence into something that actually improves SOC outcomes. As a Splunk partner working with public sector and critical infrastructure teams, we have seen firsthand how CTIS can enrich detection, response and collaboration if it is wired into the right workflows.

CTIS delivers structured threat intelligence using STIX and TAXII, which means it is machine-readable, standards-based and built for automation. What makes it different is the two-way flow. You are not just consuming indicators, you are contributing back. That is a big shift for SOC teams used to passive intel.

With Splunk Enterprise Security (ES), CTIS data lands directly in the Threat Intelligence Framework. From there, it is correlated against your telemetry such as proxy logs, endpoint data and identity events, and used to trigger detections, enrich investigations and support automated response.

Here is what we have learnt helping teams get value from CTIS in Splunk. It is not about ticking boxes. It is about building workflows that make intelligence usable.

Ingest with Purpose Use Splunk’s Threat Intelligence Framework to ingest CTIS collections via TAXII. That ensures structured intel lands where it can be correlated, not dumped into a dashboard nobody checks. We help teams scope the feed, tune polling intervals and validate that the data is actually usable.

Correlate with Context CTIS indicators are matched against your logs, but the real value comes from context. Splunk ES enriches alerts with confidence scores, TLP markings and threat descriptions. We help teams tune correlation searches so they surface what matters and suppress what does not.

Automate with Guardrails Splunk Cloud SOAR allows you to automate response, but automation without governance is risky. We help teams build playbooks that act on high-confidence CTIS intel, escalate medium-confidence hits and log the rest for review. It is automation that respects your risk appetite

Report What Matters CTIS participation is not just technical. It is strategic. We help teams build dashboards that show CTIS-driven detections, response time improvements and contribution metrics. That is how you prove value to leadership and align with ASD expectations.

Being a consumer of CTIS intelligence is a strong start. But contributing back is what strengthens the ecosystem. It means your SOC is not just defending your organisation, it is helping defend the sector, the community and the country. That is collective defence in action.

As a partner, we are here to help make that real. From onboarding to automation, and from correlation to contribution, we work with teams to turn CTIS into something that delivers measurable outcomes.

If you are looking to get started, we offer a short CTIS Readiness Workshop. It covers eligibility, connector setup and your first three correlation use cases. It is a fast way to turn CTIS from a feed into a force multiplier—and to play your part in building a safer digital Australia.