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Security and Ethical Challenges

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1 Security and Ethical Challenges
Chapter 11 Security and Ethical Challenges McGraw-Hill/Irwin Copyright © 2010 by the McGraw-Hill Companies, Inc. All rights reserved.

2 IT Security, Ethics, and Society
Information technology has both beneficial and detrimental effects on society and people Manage work activities to minimize the detrimental effects Strive to optimize the beneficial effects

3 IT Security, Ethics, and Society

4 Categories of Ethical Business Issues

5 Corporate Social Responsibility Theories
Stockholder Theory Social Contract Theory Stakeholder Theory Managers are agents of stockholders. Their ethical responsibility is to increase profits without violating laws or engaging in fraud Companies have an ethical responsibility to all members of society Managers have an ethical responsibility to manage a firm for the benefit of all its stakeholders

6 Principles of Technology Ethics

7 Responsible Professional Guidelines
A responsible professional Acts with integrity Increases personal competence Sets high standards of personal performance Accepts responsibility for his/her work Advances the health, privacy, and general welfare of the public

8 Computer Crime Unauthorized use, access, modification, or destruction of hardware, software, data, or network resources The unauthorized release of information The unauthorized copying of software Denying an end user access to his/her own hardware, software, data, or network resources Using or conspiring to use computer or network resources illegally to obtain information or tangible property

9 Hacking Hacking The obsessive use of computers
Unauthorized access/use of networked computers Breaking and Entering Hacking into a computer system and reading files, but neither stealing nor damaging anything Cracker A malicious or criminal hacker who maintains knowledge of vulnerabilities found for private advantage

10 Common Hacking Tactics

11 Cyber Theft Many computer crimes involve theft of money
Most are “inside jobs” that involve unauthorized network entry and alteration of databases to cover the tracks of the employees involved Many attacks occur through the Internet Most companies don’t reveal that they have been targets or victims of cyber crime

12 Cyberterrorism The leveraging of an organization’s or government’s computers and information Particularly through the Internet To cause physical, real-world harm or severe disruption of infrastructure Can have serious, large-scale influence Can weaken a country’s economy Can affect Internet-based businesses

13 Unauthorized Use at Work
Unauthorized use of computer systems and networks is time and resource theft Doing private consulting Doing personal finances Playing video games Unauthorized use of Internet or company networks Sniffers Monitor network traffic or capacity to find evidence of improper use

14 Internet Abuses in the Workplace
General abuses Unauthorized use and access Copyright infringement Plagiarism Newsgroup postings Transmission of confidential data Moonlighting Use of external ISPs Leisure use of Internet Hacking Pornography Non-work-related downloads or upload

15 A third of the software industry’s revenues are lost to piracy
Software Piracy Software Piracy Unauthorized copying of computer programs Licensing Purchasing software is really a payment for a license for fair use Site license allows a certain number of copies Public domain software is not copyrighted A third of the software industry’s revenues are lost to piracy

16 Theft of Intellectual Property
Copyrighted material Includes music, videos, images, articles, books, and software Copyright Infringement is Illegal Peer-to-peer networking techniques have made it easy to trade pirated intellectual property Publishers Offer Inexpensive Online Music Illegal downloading of music and video is down and continues to drop

17 Viruses and Worms A virus is a program that cannot work without being inserted into another program A worm is a distinct program that can run unaided These programs copy annoying or destructive routines into networked computers Copy routines spread the virus Commonly transmitted through The Internet and online services and file attachments Disks from contaminated computers Shareware

18 Top Five Virus Families of all Time
My Doom, 2004 Spread via and over Kazaa file-sharing network Installs a back door on infected computers Infected poses as returned message or one that can’t be opened correctly, urging recipient to click on attachment Opens up TCP ports that stay open even after termination of the worm Upon execution, Notepad is opened, filled with nonsense characters

19 Top Five Virus Families of all Time
Netsky, 2004 Mass-mailing worm that spreads by ing itself to all addresses found on infected computers Tries to spread via peer-to-peer file sharing by copying itself into the shared folder Renames itself to pose as one of 26 other common files along the way

20 Top Five Virus Families of all Time
SoBig, 2003 Mass-mailing worm that arrives as an attachment Examples: Movie_0074.mpg.pif, Document003.pif Scans all .WAB, .WBX, .HTML, .EML, and .TXT files looking for addresses to which it can send itself Also attempts to download updates for itself

21 Top Five Virus Families of all Time
Klez, 2002 Mass-mailing worm that arrives with a randomly named attachment Exploits a known vulnerability in MS Outlook to auto-execute on unpatched clients Tries to disable virus scanners and then copy itself to all local and networked drives with a random file name Deletes all files on the infected machine and any mapped network drives on the 13th of all even-numbered months

22 Top Five Virus Families of all Time
Sasser, 2004 Exploits a Microsoft vulnerability to spread from computer to computer with no user intervention Spawns multiple threads that scan local subnets for vulnerabilities

23 Adware and Spyware Adware Spyware
Software that purports to serve a useful purpose, and often does Allows advertisers to display pop-up and banner ads without the consent of the computer user 1. Adware that uses an Internet connection in the background, without the user’s permission or knowledge 2. Captures information about the user and sends it over the Internet

24 Privacy Issues The power of information technology to store and retrieve information can have a negative effect on every individual’s right to privacy Personal information is collected with every visit to a Web site Confidential information stored by credit bureaus, credit card companies, and the government has been stolen or misused

25 Opt-in Versus Opt-out Opt-In Opt-Out
You must explicitly consent to allow data to be compiled about you This is the default in Europe Data can be compiled about you unless you specifically request that it not be This is the default in the U.S.

26 Additional Privacy Issues
Violation of Privacy Accessing individuals’ private conversations and computer records Collecting and sharing information about individuals gained from their visits to Internet websites Computer Monitoring Always knowing where a person is Mobile and paging services are becoming more closely associated with people than with places

27 Privacy Issues Computer Matching Unauthorized Access of Personal Files
Using customer information gained from many sources to market additional business services Unauthorized Access of Personal Files Collecting telephone numbers, addresses, credit card numbers, and other information to build customer profiles

28 Protecting Your Privacy on the Internet
Ways to protect your privacy Encrypt Send newsgroup postings through anonymous r ers Ask your ISP not to sell your name and information to mailing list providers and other marketers Don’t reveal personal data and interests on online service and website user profiles

29 Privacy Laws Electronic Communications Privacy Act and Computer Fraud and Abuse Act Prohibit intercepting data communications messages, stealing or destroying data, or trespassing in federal computer systems U.S. Computer Matching and Privacy Act Regulates the matching of data held in federal agency files to verify eligibility for federal programs

30 Privacy Laws Other laws impacting privacy and how much a company spends on compliance Sarbanes-Oxley Health Insurance Portability & Accountability Act (HIPAA) Gramm-Leach-Bliley USA PATRIOT Act California Security Breach Law Securities and Exchange Commission rule 17a-4

31 Computer Libel and Censorship
The opposite side of the privacy debate… Freedom of information, speech, and press Biggest battlegrounds Bulletin boards boxes Online files of Internet and public networks Weapons used in this battle Spamming Flame mail Libel laws Censorship

32 Computer Libel and Censorship
Spamming Flaming Indiscriminate sending of unsolicited messages to many Internet users Sending extremely critical, derogatory, and often vulgar messages or newsgroup postings to other Internet users or online services Especially prevalent on special-interest newsgroups

33 Encompasses a wide variety of legal and political issues
Cyberlaw Laws intended to regulate activities over the Internet via electronic communication devices Encompasses a wide variety of legal and political issues Includes intellectual property, privacy, freedom of expression, and jurisdiction

34 Other Challenges Employment Computer Monitoring
IT creates new jobs and increases productivity It can also cause significant reductions in job opportunities, as well as requiring new job skills Computer Monitoring Using computers to monitor the productivity and behavior of employees as they work Criticized as unethical; it monitors individuals, not just work, and is done constantly Criticized as invasion of privacy because many employees do not know they are being monitored

35 IT has eliminated monotonous or obnoxious tasks
Other Challenges Working Conditions IT has eliminated monotonous or obnoxious tasks But, some skilled craftsperson jobs have been replaced by jobs requiring routine, repetitive tasks or standby roles Individuality Dehumanizes and depersonalizes activities because computers eliminate human relationships Inflexible systems

36 Cumulative Trauma Disorders (CTDs) Carpal Tunnel Syndrome
Health Issues Cumulative Trauma Disorders (CTDs) Disorders suffered by people who sit at a PC or terminal and do fast-paced repetitive keystroke jobs Carpal Tunnel Syndrome Painful, crippling ailment of the hand and wrist Typically requires surgery to cure

37 Ergonomics Designing healthy work environments
Safe, comfortable, pleasant place for people to work Increases employee morale and productivity Also called human factors engineering

38 Ergonomic Factors

39 Societal Solutions Using information technologies to solve human and social problems Medical diagnosis Computer-assisted instruction Government program planning Environmental quality control Law enforcement Job placement

40 Societal Solutions Detrimental effects of information technology
Often caused by individuals or organizations not accepting ethical responsibility for their actions

41 Security Management of IT
The Internet was developed for inter-operability, not impenetrability Business managers and professionals alike are responsible for the security, quality, and performance of business information systems Hardware, software, networks, and data resources must be protected by a variety of security measures

42 Security Management The goal of security management is the accuracy, integrity, and safety of all information system processes and resources

43 Internetworked Security Defenses
Encryption Data is transmitted in scrambled form It is unscrambled by computer systems for authorized users only The most widely used method uses a pair of public and private keys unique to each individual

44 Public/Private Key Encryption

45 Internetworked Security Defenses
Firewalls Gatekeeper system that protects a company’s intranets and other computer networks from intrusion Provides a filter and safe transfer point for access to/from the Internet and other networks Important for individuals who connect to the Internet with DSL or cable modems Can deter hacking, but can’t prevent it

46 Internet and Intranet Firewalls

47 Denial of Service Attacks
The victim’s website Denial of service attacks depend on three layers of networked computer systems The victim’s ISP Zombie or slave computers commandeered by cyber criminals

48 Defending Against Denial of Service
At victim’s Website Create backup servers and network connections At the ISP Monitor & block traffic spikes At Zombie machines Set/enforce security policies Scan for vulnerabilities

49 Internetworked Security Defenses
Monitoring Use content monitoring software to scan for troublesome words Virus Defenses Centralize the updating and distribution of antivirus software Use a security suite that integrates virus protection with firewalls, Web security, and content blocking features

50 Other Security Measures
Security Codes Multilevel password system Encrypted passwords Smart cards with microprocessors Backup Files Duplicate files of data or programs Security Monitors Monitor the use of computers and networks Protects them from unauthorized use, fraud, and destruction

51 Other Security Measures
Biometrics Computer devices measure physical traits that make each individual unique Voice recognition, fingerprints, retina scan Computer Failure Controls Prevents computer failures or minimizes its effects Preventive maintenance Arrange backups with a disaster recover organization

52 Other Security Measures
In the event of a system failure, fault-tolerant systems have redundant processors, peripherals, and software Fail-over: shifts to back up components Fail-safe: the system continues to operate at the same level Fail-soft: the system continues to operate at a reduced but acceptable level

53 Other Security Measures
A disaster recovery plan contains formalized procedures to follow in the event of a disaster Which employees will participate What their duties will be What hardware, software, and facilities will be used Priority of applications that will be processed Use of alternative facilities Offsite storage of databases

54 Information System Controls
Methods and devices that attempt to ensure the accuracy, validity, and propriety of information system activities

55 Auditing IT Security IT Security Audits
Performed by internal or external auditors Review and evaluation of security measures and management policies Goal is to ensure that that proper and adequate measures and policies are in place

56 Protecting Yourself from Cyber Crime


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