I’ve spent allot of time in my career focusing on Software Security.
I’m also a bit of a VoIP geek.
So Hacking VoIP: Protocols, Attacks, and Countermeasures was a treat for me, especially since it uses Asterisk which is a hobby of mine.
I’d never really thought about the subject and this book was a great intro. Not too light and a good read. (197 Pages, I read it in a single day.)
I highly recommend it if you are remotely interested din the subject !