ith client information are now widely available from a multiplicity of devices. They can be accessed from mobile devices, remote offices, home offices, and business partners. Organizations and governments attempt to keep their information and infrastructure secure with a combination of soft- ware, passwords, and secure entry to data centers where much of this data is stored. Cyber Terrorism In the past, countries engaged in spying and sabotage by planting agents in other coun- tries. They hoped to learn strategic information about their enemies and potential ene- mies through networks of spies who often disguised themselves as friendly citizens. Security Threats from Internal, External, and International Sources Some spies went beyond gaining information to planning acts of sabotage that dam- aged property, such as roads, bridges, and factories. These same countries also used networks of agents to ferret out spies trying to infiltrate their own institutions. All of these strategies still exist, but they are supplemented by cyber terrorism. Most cyber terrorism is conducted via the Internet. Acts of cyber terrorism can also be implemented by using sneaker attacks, whereby inside employees are co-opted by foreign governments or terrorist groups to learn government secrets or sabotage weapons systems by planting software bugs in computer-controlled weapons systems or copying strategic information inside the organization. This strategy is used to circumvent security measures whereby strategic departments such as armed forces or defense departments attempt to shield themselves by bypassing the Internet for all data communications. Entities such as these commu- nicate to other locations on private lines that they lease or build. These networks only connect to other trusted departments or perhaps suppliers. Cyber terrorists use the Internet to gain information and damage key infrastruc- ture remotely by deploying software programs disguised as friendly messages and nonthreatening packets. Targets can include water suppl