Why? Don't they both sell other books on cracking and pentesting and whatever? There are tons of videos on YouTube about hashcat and aircrack-ng and rainbow tables and blah blah blah.

You think this stuff is some kind of secret or illicit knowledge?

The video is just less than half a minute of him flipping through some pages in the book anyway.

Because of a Hashcat tutorial book and video?

Even Claude will help you setup hashcat and co without complaining?