ISYS 250 Lecture Notes - Lecture 5: Web Browser, Malware, Adware

• School: Maryville University of St. Louis
• Department: Information Systems
• Course: ISYS 250
• Professor: Robert Frese

Document Summary

Spyware - software that secretly gathers information about users while they browse the web. Adware - type of spyware that collects information about the user to determine which advertisements to display in the user"s web browser. Phishing - sending fraudulent e-mails that seem to come from legitimate sources. Pharming - hijacking and altering the ip address of an o cial web site. Spoo ng - attempting to gain access to a network by posing as an authorized user in order to. Computer fraud - unauthorized use of computer data for personal gain; computer crimes. Fault-tolerant systems: ensure availability in the event of a system failure by using a combination of hardware and software. Virus - consists of self-propagating program code that is triggered by a speci ed time or event. Worms - independent programs that can spread themselves without having to be attached to a host program.