These policies and procedures will not be implemented in any recognized bargaining unit until the union has been provided notice of the proposed changes and given an opportunity to fully exercise its representational rights. This set of instructions can then be spread to other programs, files, disks, systems, or networks. The instructions can display a message, erase or alter files, stored data, or potentially render a workstation or network inoperable. Sometimes, instead of disruptive instructions, a virus can cause damage by replicating itself and depleting resources, such as disk space, memory or network connections. Non-virus threats to user systems include worms, Trojan Horses, and logic bombs.
Worms infiltrate programs and alter or destroy data.
Logic bombs are usually timed or event triggered to do damage. Detection - determining that a record, data file, or storage media is contaminated with a virus. Malicious software - any code that is intentionally included in software or firmware for an unauthorized purpose. Unauthorized Software - any software that does not have a certificate of authority to operate.