We never did find out how the footage from a security camera in a secure zone of the Department of Health, a security camera the Minister did not know was there, was leaked, did we?

https://www.standard.co.uk/news/uk/brandon-lewis-matt-hancoc...

(The obvious answer would be "by some other insider" - MPs communicate over "secure" whatsapp group chats all the time, but often with a large enough number of people in them that one of them feels safe enough to leak it)