Cyber Operations Research & Development

Your cyber AI will not answer
for its mistakes. You will.

Will your cyber AI compromise your own operations while trying to disrupt an adversary’s?

FIFTH DOMAIN provides cyber operations research and development for force superiority. Expose failures in simulation before assigning authority.

Alignment

Model weights are not loyalty.

Training, instructions and tools shape behaviour. Test whether your agent serves your objectives under pressure to choose your people, agents and limits of authority.

The problems we solve

Sovereign cyber capability depends on understanding the AI we use.

Australia needs the knowledge to set its own requirements, examine cyber AI behaviour and decide what is fit for its missions. FIFTH DOMAIN fills a gap in the Australian AI stack in the form of a trusted, sovereign research and technology lab, capable of accelerating Australia's responsible adoption of AI in cyber operations.

AI model builders

A higher score can hide a critical failure.

You train or fine-tune the model itself. Use cyber evaluations to expose its failures and training data to build stronger Australian AI.

Security operations & agent developers

A capable agent can still act against your intent.

You build or deploy agents using existing models. Test their instructions, tools and permissions against your operational objectives before giving them authority.

Government & Defence

Buying AI is not building a force.

Assess people and agents against mission requirements. Design the force and develop the capability your operations need.

Organisations we have worked with

Research and evidence

Research becomes useful when people can examine and learn from it.

An agent can dismiss a real threat and leave an intrusion running. Test its investigation in simulation; a score cannot reveal failures an evaluation misses.

Read human and AI results alongside tasks, tools, time, assistance and grading. For AI, examine the model and harness: the software running the agent and connecting its tools.

xorcise.ai hosts XORCISE and our cyber AI research.

Force development

Develop the people and agents your mission needs.

Agents

XORCISE

Find where your agent fails, examine its behaviour and test improvements.

Explore XORCISE

People

5D.PRO

Assess demonstrated skills. Hire on evidence and train against the gaps.

Explore 5D.PRO

Customer simulations and data handling

Why Fifth Domain

You own the mission and the decisions.

We share knowledge from examining human cyber performance since 2015 and AI since 2024.

Simulations generated for a customer are private to that customer. Customers own the results of their work with us.

About Fifth Domain

Work with us

Know what you are relying on.

Bring the mission, the capability gap or the behaviour you need to test.

Discuss your requirements