Within hours, Anthropic shut down access to the models for users everywhere in the world, including researchers, clinicians and analysts in Australia. This happened with no warning and no backup plan.
Why did this happen?
The directive’s “foreign national” criterion is a citizenship concept. However, Anthropic and other cloud-based AI providers only know the location of their users, not their citizenship.
Consumer AI services have no effective mechanism to verify citizenship. Even their location filters can be dodged with tools such as virtual private networks (VPNs).
There is no way any control of these services based on user nationality can be enforced. A system that blocks a foreign national in the United States but allows access to a US national in Australia, for example, is not currently available.
The US government directive was a geopolitical signal – an indication rather than an enforceable control. The only way Anthropic could comply was to shut down access for people everywhere.
A question of sovereignty
Australian universities, government agencies, health systems and industry have integrated US-hosted frontier AI deeply into their operations. Advanced analytics platforms, AI-assisted research tools, and productivity infrastructure built on top of models such as Claude or GPT-5 operate with an implicit assumption: that access will persist.
The same is true of ubiquitous systems such as Microsoft Teams or Google Workspace, but as we are seeing the assumption may not hold for AI.
The Anthropic shutdown was a reminder that access and control sat entirely within US jurisdiction, regardless of where any Australian user happened to be. It represents a failure of data and technology sovereignty: our ability to operate without permission from other nations.
Australia’s exposure
The Anthropic shutdown is the first legally enforceable export control targeting a software-level AI system. It will not be the last.
Any frontier AI model hosted in the US, by Anthropic, OpenAI, Google DeepMind or Meta, is subject to US export control law. The precedent set this week extends to all of them.
There is some debate about whether an export control only applies to physical exports and not remote access to models housed in the US, and some experts have suggested the order may be challenged on those grounds. If that were to happen, we would expect the US government to change the regulations.
The US government has previously used technology export controls as a geopolitical instrument, particularly in the case of chips and semiconductors. Even US allies such as Australia are not exempt from these controls.
The Anthropic order should have come as no surprise. Voices in Australia’s own research community including Jon Whittle, former head of CSIRO Data61, had been publicly warning about exactly this scenario for more than a year.
To prepare for the future, Australia needs a strategy for its own sovereign AI. This can’t be a distant aspiration: it needs to be an operational plan with named owners, timelines and budget.



