I don't know or care as I'm not a party in this situation.
It is evident from the BBC article that restricted data was shared unlawfully with Musk and that they are asked to delete the data.
What will you do with the name of the person? Prosecute them?
You're welcome to look online yourself for answers for your questions - or chat with a competent lawyer, they'll be happy to help you sort it out
It is claimed from the BBC article. Even the shopped judge doesn't know if it is or isn't until the hearing next week.