My Lords, thanks to a whistleblower, we learned on 4 August from the Daily Telegraph that, up to 2021 when it was discontinued, a chain of outsourcing resulted in software for our nuclear submarine engineers being developed by private companies in Minsk and Siberia. The Telegraph reported Ben Wallace, the then Defence Secretary, as saying that the breach left the UK’s national security “vulnerable to undermining”. Can my noble friend tell us whether this story is true? If it is true, where can we find a credible, comprehensive rebuttal? Otherwise, is it not likely that our deterrent will be undermined?