1. Leyden, J.: Conficker botnet growth slows at 10m infections. The Register 26/1/09 (2009), http://www.theregister.co.uk/2009/01/26/conficker_botnet/
2. Chapman, S.: Massive 2 Million PCs Botnet Uncovered. Computerworld, UK, 23/4/09 (2009), http://www.cio.com/article/490454/Massive_2_Million_PCs_Botnet_Uncovered
3. Van Buskirk, E.: Facebook Confirms Denial-of-Service Attack. Wired, 6/8/09 (2009), http://www.wired.com/epicenter/2009/08/facebook-apparently-attacked-in-addition-to-twitter/
4. Nakashima, E., Krebs, B., Harden, B.: U.S., South Korea Targeted in Swarm Of Internet Attacks. The Washington Post, 9/7/09 (2009), http://www.washingtonpost.com/wp-dyn/content/article/2009/07/08/AR2009070800066.html
5. Worldwide Infrastructure Security Report. Arbor Networks (2009), http://www.arbornetworks.com/report