Yep. I'm familiar with the issues around the veracity of that book. That isn't really the point. Back in 1995 that was pretty much all we had to go on, and Mitnick still became a hero to a bunch of us.
In the subsequent years I've read all of Kevin's books, as well as pretty much all the other books written about his life, and watched the various movies and documentaries that dealt with his story. It seems like Markoff was kind of a dick and frankly contributed to some of Kevin's problems. Sad. :-(
https://youtu.be/3zgLHEqIlJg?t=528