A must listen to is the BBC File on 4 Podcast - Held to Ransom
The BBC Podcast - Held to Ransom https://www.bbc.co.uk/programmes/m000xs0h really gives insight into a real Ransomware negotiation and incident managment. If it wasn't 'Nick Shah' involved then must have been a clone! Excellent articles both by The Register and BBC's FileOn4!