'''18.''' The most common form of “cyber terrorism” is a DDOS, or Distributed Denial of Service attack, whereby hundreds if not thousands of systems around the world simultaneously and repeatedly connect to a website or network in order to tie up the server resources, often sending it crashing offline. Anonymous released a tool this year that users could download and set on autopilot to receive attack commands from a remote command source. Similar DDOS attacks are often performed by the use of malware installed on users computers without their knowledge.</div>

'''18.''' The most common form of “cyber terrorism” is a DDOS, or Distributed Denial of Service attack, whereby hundreds if not thousands of systems around the world simultaneously and repeatedly connect to a website or network in order to tie up the server resources, often sending it crashing offline. Anonymous released a tool this year that users could download and set on autopilot to receive attack commands from a remote command source. Similar DDOS attacks are often performed by the use of malware installed on users computers without their knowledge.</div>