Appendix D. Essential Reference
As with WordPress plugins, there are so many superb security sites that it's hard to know where to stop with a reference section. Nonetheless, here's a start.
Added to a raft of WordPress pit stops, pages to help server-side, and others for browsers and operating systems, we have links to key organizations as well as a clutch of tools. There's also a heavy lean to hacking sites here, with blogs, forums, and tutorial pages listed to help equip you with the skills required to defend an online presence.
Note
Tread warily: forums and IRC channels house hackers with variously colored hats.
So surf over, bag bookmarks, fix feeds and, mostly, read deeply and practice legally.