Question to the Department of Health and Social Care:

To ask His Majesty's Government what assessment they have made of the risks of using the NHS number as the consistent child identifier in the Children’s Wellbeing and Schools Bill; and whether they will publish their assessment of the ability of the NHS to issue new NHS numbers in bulk, following reports of NHS numbers being stolen following a cyber attack in June 2024.

The potential for the National Health Service number to be used as a single unique identifier (SUI) for children is being explored in a series of pilots, which will include consideration of risk. The Children's Wellbeing and Schools Bill does not specify the use of the NHS number as an SUI, but allows regulations to do so, if it is appropriate.

There is no expectation that the NHS will need to issue new NHS numbers in bulk. Misuse of personally identifiable information is guarded against via governance processes that are the responsibility of data controllers and processors.