There was some early overexplainy stuff in the beginning of this book which made me think I wouldn’t like it, but the story actually kept me paying attention. There’s a background of crypto/blockchain topics but even if you don’t want to read about that sort of thing, you might like this. A Red Team guy (one who looks for vulnerabilities in systems) needs to play for the Blue Team (i.e. protect himself) and it’s interesting, not super deep, but I enjoyed it.