"Hacking is parasitical, mostly performed by the rich and powerful, and it comes at the expense of everyone else" (p 105). Cybersecurity expert Schneier interestingly stresses that hacking is not confined to computer systems but exists wherever money or other advantage can be gained through sneakiness distinct from cheating and outright lawbreaking. After identifying some basic hacks (of ATMs, casinos, frequent-flier schemes, sports) and defenses against them, he focuses on numerous examples of system hacks in the realms of finance, law, politics, human cognition, and AI. Besides hacking *of* AIs, there will be hacking *by* AIs. "Unless we can hack the process of hacking itself, ..., we may struggle to survive this technological future" (p 252).