The UK's Office for Budget Responsibility must take "immediate steps to
change completely the publication arrangements" of forecasts, it said Monday, after an "inadvertent" leak of measures in the Nov. 26 budget.
"Ultimate responsibility for the circumstances in which this vulnerability occurred and was then exposed rests, over the years, with the leadership of the OBR," it said.
The report found the March 2025 EFO was also accessed "prematurely," although the "most likely explanation is benign."