speaking to the bbc�*s ben thompson, the head of global cyber—security firm, the ncc group, called thel" for businesses. i think, from this incident, one of the things we have learned is just how complex our supply chains are, and i think many businesses don't really understand that. so, crowdstrike, as i say, fantastic product, but it is probably not a strategic solution within an organisation, it is not a core finance system, not a core hr system, so for that to be able to cause these sorts of implications is quite serious, so i think what the lessons are for businesses, for supply chains, is actually you have to understand how technology fits within your operations. i think you have to be prepared, think through the scenario, so that you have plans in place, and we have to test, and i think it really does talk to a whole objective, which is about digital resilience in an interconnected world. that's fairly early days, we are starting to see regulation come through, but it is fairly early days for a lot of organisations, so there is a lot to do around this. we hear the word "resilien