A network, not a single company
Deloitte traces to William Welch Deloitte's 1845 accounting practice and now operates as Deloitte Touche Tohmatsu Limited, a UK private company that coordinates legally separate and independent member firms across roughly 150 countries and territories. Those member firms cannot obligate or bind one another, which matters for reading any single Deloitte engagement: the firm that signed a given contract is a distinct legal entity from Deloitte's operations elsewhere. Deloitte's own materials describe serving about 90 percent of the Fortune Global 500. [1]
Atlas interpretation: Deloitte sells advisory, audit and consulting work, including advice about how clients use AI. The Australian report shows how errors in an AI-assisted deliverable can become part of a client's public record. [1]
A report with citations that did not exist
Deloitte's Australian member firm produced a 237-page report for the country's Department of Employment and Workplace Relations reviewing the department's automated welfare-compliance penalty system, under a contract worth AU$440,000 (about US$290,000). Chris Rudge, a University of Sydney researcher, identified fabricated references in the report, including a quote falsely attributed to a federal court judge and a nonexistent academic work. [2][3]
Deloitte reissued the report with the false citations removed and disclosed that it had used Microsoft's Azure OpenAI service in drafting the original version. Deloitte agreed to repay the contract's final installment. It did not confirm that the AI tool was specifically responsible for the fabrications. [2][3]
Sources
- Who We Are | Deloitte
Deloitte · Aug 20, 2026
- Government use of consultancy firms under fire
ABC Radio National Breakfast · Oct 7, 2025
- Deloitte was caught using AI in $290,000 report to help the Australian government crack down on welfare after a researcher flagged hallucinations
Fortune · Oct 7, 2025