Although these two articles aren't CCIE preparation related I think they both are interesting for us Cisco nerds ;)

Hacker writes rootkit for Cisco's routers

http://www.networkworld.com/news/2008/051408-hacker-writes-rootkit-for-ciscos.html?page=1

FBI Fears Chinese Hackers Have Back Door Into US Government & Military

http://www.abovetopsecret.com/forum/thread350381/pg1