The Worldwide Infrastructure Security Report, produced annually by Arbor Networks, found that distributed denial of service (DDOS) attacks are becoming more powerful and sophisticated. The largest attacks can be over 40 gigabits, up from less than half a megabit over the last seven years. Internet attackers are now using networks of hijacked computers to overwhelm large web sites and corporate networks with DDOS attacks.
View the press release here: Arbor Networks Publishes Fourth Annual Worldwide Infrastructure Security Report | Arbor Networks
Or download the computer report here: Worldwide Infrastructure Security Report
Make sure your computer is secure with firewall, and protection against viruses, spybots and malware. Otherwise, YOUR computer could be used to perform part of a DDOS attack. Make sure you set the programs to automatically update or you should manually update them 2-3x a week.
I use ZoneAlarm, Spybot Search & Destroy, Ad-Aware, and Norton Anti-Virus. These are direct links and the download are free of any type of trojans or tracking cookies.