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Unformatted text preview: Chapter 9 Information Systems Ethics, Computer Crime, and Security
Information Systems Today
Leonard Jessup and Joseph Valacich Chapter 9 Objectives
Understand how computer ethics affects IS Understand information privacy, accuracy, property, and accessibility Understand types of computer crime Understand the terms virus, worm, Trojan horse, and logic or time bomb Understand computer security Information Systems Ethics Toffler's three waves of change Agriculture Industrial Revolution Information Age Information Systems Ethics Computer Literacy Knowing how to use a computer That gap between those with computer access and those who don't have it Standards of conduct as they pertain to the use of information systems Digital Divide Computer Ethics Information Systems Ethics Privacy Protecting one's personal information Stealing of another's social security number, credit card number, or other personal information Identity theft Information Systems Ethics Information accuracy Deals with authentication and fidelity of information Deals with who owns information about individuals and how information can be sold and exchanged Information property Information Systems Ethics Information accessibility Deals with what information a person has the right to obtain about others and how the information can be used Issues in information accessibility
Carnivore Electronic Communications Privacy Act (ECPA) Monitoring e-mail Information Systems Ethics The need for a code of ethical conduct
Business ethics Plagiarism Cybersquatting Computer Crime Definition: the act of using a computer to commit an illegal act
Authorized and unauthorized computer access Examples Stealing time on company computers Breaking into government Web sites Stealing credit card information Computer Crime Federal and State Laws
Stealing or compromising data Gaining unauthorized computer access Violating data belonging to banks Intercepting communications Threatening to damage computer systems Disseminating viruses Computer Crime Hacking and Cracking
Hacker one who gains unauthorized computer access, but without doing damage Cracker one who breaks into computer systems for the purpose of doing damage Computer Crime Who commits computer crime? Computer Crime Types of computer crime Data diddling: modifying data Salami slicing: skimming small amounts of money Phreaking: making free long distance calls Cloning: cellular phone fraud using scanners Carding: stealing credit card numbers online Piggybacking: stealing credit card numbers by spying Social engineering: tricking employees to gain access Dumpster diving: finding private info in garbage cans Spoofing: stealing passwords through a false login page Computer Crime Software piracy
North America 25% Western Europe 34% Asia / Pacific 51% Mid East / Africa 55% Latin America 58% Eastern Europe 63% Computer Crime Computer viruses and destructive code Virus a destructive program that disrupts the normal functioning of computer systems Types: Worm: usually does not destroy files; copies itself Trojan horses: Activates without being detected; does not copy itself Logic or time bombs: A type of Trojan horse that stays dormant for a period of time before activating Computer Security Computer Security precautions taken to keep computers and the information they contain safe from unauthorized access Computer Security Recommended Safeguards Implement a security plan to prevent break-ins Have a plan if break-ins do occur Make backups! Only allow access to key employees Change passwords frequently Keep stored information secure Use antivirus software Use biometrics for access to computing resources Hire trustworthy employees Computer Security Encryption the process of encoding messages before they enter the network or airwaves, then decoding them at the receiving end of the transfer Computer Security How encryption works Symmetric secret key system
Both sender and recipient use the same key Key management can be a problem Public key technology A private key and a public key Certificate authority
A trusted middleman verifies that a Web site is a trusted site (provides public keys to trusted partners) Secure socket layers (SSL) Computer Security Other encryption approaches Pretty good privacy (PGP)
Phil Zimmerman Clipper Chip Computer Security Internet Security Firewall hardware and software designed to keep unauthorized users out of network systems Computer Security Virus prevention
Install antivirus software Make backups Avoid unknown sources of shareware Delete e-mails from unknown sources If your computer gets a virus... Computer Security How to maintain your privacy online
Choose Web sites monitored by privacy advocates Avoid "cookies" Visit sites anonymously Use caution when requesting confirming e-mail Computer Security Avoid getting conned in cyberspace
Internet auctions Internet access International modem dialing Web cramming Multilevel marketing (pyramid schemes) Travel/vacations Business opportunities Investments Health-care products ...
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This note was uploaded on 07/06/2009 for the course MGT BAM313 taught by Professor Na during the Spring '09 term at 東京大学.
- Spring '09