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Chapter11

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Chapter 11 Computer Security, Ethics and Privacy
Chapter 11 Objectives Describe the types of computer security risks Identify ways to safeguard against computer viruses, worms, Trojan horses, botnets, denial of service attacks, back doors, and spoofing Discuss techniques to prevent unauthorized computer access and use Identify safeguards against hardware theft and vandalism Explain the ways software manufacturers protect against software piracy Define encryption and explain why it is necessary Discuss the types of devices available that protect computers from system failure Explain the options available for backing up computer resources Identify risks and safeguards associated with wireless communications Recognize issues related to information accuracy, rights, and conduct Discuss issues surrounding information privacy Discuss ways to prevent health-related disorders and injuries due to computer use Next
Computer Security Risks ,[object Object],p. 556 - 558 Fig. 11-1 ,[object Object],Next Click to view Web Link, click Chapter 11, Click Web Link from left navigation, then click Computer Emergency Response Team Coordination Center below Chapter 11
Internet and Network Attacks ,[object Object],p. 558 Virus is a potentially damaging computer program ,[object Object],Trojan horse hides within or looks like legitimate program until triggered Payload (destructive event) that is delivered Can spread and damage files Does not replicate itself on other computers Next
Internet and Network Attacks ,[object Object],p. 559 Fig. 11-2 Step 1. Unscrupulous programmers create a virus program that deletes all files. They hide the virus in a picture and attach the picture to an e-mail message. Step 2. They use the Internet to send the e-mail message to thousands of users around the world. Step 3b. Other users do not recognize the name of the sender of the e-mail message. These users do not open the e-mail message - instead they delete the e-mail message. These users’ computers are not infected with the virus. Step 3a. Some users open the attachment and their computers become infected with the virus. Next
Internet and Network Attacks Video: Attack of the Mobile Viruses Next CLICK TO START
Internet and Network Attacks ,[object Object],p. 560 Fig. 11-3 ,[object Object],[object Object],[object Object],Next
Internet and Network Attacks ,[object Object],p. 560 - 561 Fig. 11-4 ,[object Object],[object Object],Next
Internet and Network Attacks ,[object Object],p. 561 Fig. 11-5 ,[object Object],[object Object],[object Object],Next
Internet and Network Attacks ,[object Object],p. 561 Keeps file in separate area of hard disk Next Records information about program such as file size and creation date Attempts to remove any detected virus Uses information to detect if virus tampers with file Quarantines infected files that it cannot remove
Internet and Network Attacks ,[object Object],p. 562 Install a personal firewall program If the antivirus program flags an e-mail attachment as infected, delete the attachment immediately Never start a computer with removable media inserted Never open an e-mail attachment unless you are expecting it and it is from a trusted source Install an antivirus program on all of your computers Check all downloaded programs for viruses, worms, or Trojan horses Next Click to view Web Link, click Chapter 11, Click Web Link from left navigation, then click Virus Hoaxes below Chapter 11
Internet and Network Attacks ,[object Object],p. 562 - 563 A denial of service attack is an assault which disrupts computer access to an Internet service such as the Web or e-mail A back door is a program or set of instructions in a program that allow users to bypass security controls when accessing a computer resource Spoofing is a technique intruders use to make their network or Internet transmission appear legitimate to a victim computer or network Next
Internet and Network Attacks ,[object Object],p. 563 Fig. 11-7 ,[object Object],Next
Internet and Network Attacks ,[object Object],p. 564 Fig. 11-8 ,[object Object],[object Object],[object Object],Next
Unauthorized Access and Use ,[object Object],p. 564 - 565 Next Intrusion detection software analyzes network traffic, assesses system vulnerabilities, and identifies intrusions and suspicious behavior Access control defines who can access computer and what actions they can take Audit trail records access attempts
Unauthorized Access and Use ,[object Object],p. 565 Fig. 11-9 ,[object Object],Next
Unauthorized Access and Use ,[object Object],p. 566 Fig. 11-10 ,[object Object],[object Object],Next Click to view Web Link, click Chapter 11, Click Web Link from left navigation, then click CAPTCHAs below Chapter 11
Unauthorized Access and Use ,[object Object],p. 566 - 567 Fig. 11-11 ,[object Object],Next
Unauthorized Access and Use ,[object Object],p. 567 ,[object Object],[object Object],Next
Unauthorized Access and Use ,[object Object],p. 567 - 568 Fig. 11-13 ,[object Object],[object Object],Next
Hardware Theft and Vandalism ,[object Object],p. 569 - 570 Fig. 11-14 ,[object Object],[object Object],[object Object],[object Object],[object Object],Next Click to view Web Link, click Chapter 11, Click Web Link from left navigation, then click RTLS below Chapter 11
Software Theft ,[object Object],p. 570 Next Act of stealing or illegally stealing software, copying software or intentionally erasing programs Software piracy is illegal duplication of copyrighted software
Software Theft ,[object Object],p. 570 - 571 Fig. 11-15 ,[object Object],[object Object],Next
Software Theft ,[object Object],p. 571 Product activation allows user to input product identification number online or by telephone and receive unique installation identification number Business Software Alliance (BSA) promotes better understanding of software piracy problems Next Click to view Web Link, click Chapter 11, Click Web Link from left navigation, then click Business Software Alliance below Chapter 11
Information Theft ,[object Object],p. 572 Fig. 11-16 ,[object Object],[object Object],[object Object],[object Object],Next
Information Theft ,[object Object],p. 573 Fig. 11-17 Next Click to view Web Link, click Chapter 11, Click Web Link from left navigation, then click BitLocker below Chapter 11
Information Theft ,[object Object],Secure site is Web site that uses encryption to secure data p. 573 Digital certificate is notice that guarantees Web site is legitimate Many Web browsers use encryption Next Click to view Web Link, click Chapter 11, Click Web Link from left navigation, then click Digital Certificates below Chapter 11
Information Theft ,[object Object],p. 573 Fig. 11-18 ,[object Object],[object Object],Next
Information Theft ,[object Object],p. 574 Fig. 11-19 ,[object Object],[object Object],Next
System Failure ,[object Object],p. 574 Caused by aging hardware, natural disasters, or electrical power disturbances Can cause loss of hardware, software, or data Prolonged malfunction of computer Undervoltage —drop in electrical supply Next Overvoltage or power surge — significant increase in electrical power Noise —unwanted electrical signal
System Failure ,[object Object],p. 574 - 575 Figs. 11-20–11-21 ,[object Object],[object Object],Next Click to view Web Link, click Chapter 11, Click Web Link from left navigation, then click Uninterruptible Power Supply below Chapter 11
Backing Up — The Ultimate Safeguard ,[object Object],p. 576 Duplicate of file, program, or disk Full backup all files in computer Selective backup select which files to back up Three-generation backup preserves three copies of important files In case of system failure or corrupted files, restore files by copying to original location Next
Wireless Security ,[object Object],p. 577 Fig. 11-22 ,[object Object],[object Object],[object Object],[object Object],Next
Ethics and Society ,[object Object],p. 578 - 579 Information privacy Intellectual property rights —rights to which creators are entitled for their work Software theft Information accuracy Codes of conduct Unauthorized use of computers and networks Moral guidelines that govern use of computers and information systems Next Click to view Web Link, click Chapter 11, Click Web Link from left navigation, then click Digital Rights Management below Chapter 11
Ethics and Society ,[object Object],p. 580 Fig. 11-25 ,[object Object],[object Object],Next
Information Privacy ,[object Object],p. 580 and 586 Legal for employers to use monitoring software programs Difficult to maintain today because data is stored online Employee monitoring is using computers to observe employee computer use Right of individuals and companies to deny or restrict collection and use of information about them Next
Information Privacy ,[object Object],p. 581 Fill in only necessary information on rebate, warranty, and registration forms Avoid shopping club and buyers cards Install a cookie manager to filter cookies Inform merchants that you do not want them to distribute your personal information Limit the amount of information you provide to Web sites; fill in only required information Clear your history file when you are finished browsing Set up a free e-mail account; use this e-mail address for merchant forms Turn off file and print sharing on your Internet connection Install a personal firewall Sign up for e-mail filtering through your Internet access provider or use an antispam program, such as Brightmail Do not reply to spam for any reason Surf the Web anonymously with a program such as Freedom Web Secure or through an anonymous Web site such as Anonymizer.com Next
Information Privacy ,[object Object],p. 581 - 582 Fig. 11-27 ,[object Object],[object Object],[object Object],Next
Information Privacy ,[object Object],p. 582 Set browser to accept cookies, prompt you to accept cookies, or disable cookies Some Web sites sell or trade information stored in your cookies Small text file on your computer that contains data about you User preferences Interests and browsing habits How regularly you visit Web sites Next
Information Privacy ,[object Object],p. 583 Fig. 11-28 Next
Information Privacy ,[object Object],p. 583 - 584 Fig. 11-29 ,[object Object],[object Object],[object Object],Next Click to view Web Link, click Chapter 11, Click Web Link from left navigation, then click Spam below Chapter 11
Information Privacy ,[object Object],p. 584 E-mail filtering Anti-spam program Next Collects spam in central location that you can view any time Service that blocks e-mail messages from designated sources Sometimes removes valid e-mail messages Attempts to remove spam
Information Privacy ,[object Object],p. 584 Scam in which a perpetrator sends an official looking e-mail that attempts to obtain your personal and financial information Next
Information Privacy ,[object Object],p. 585 Fig. 11-30 Next
Information Privacy ,[object Object],p. 585 Fig. 11-30 Next
Information Privacy ,[object Object],p. 586 - 587 Fig. 11-31 ,[object Object],[object Object],[object Object],Next
Information Privacy ,[object Object],p. 587 ,[object Object],[object Object],[object Object],Next
Health Concerns of Computer Use ,[object Object],Computer vision syndrome (CVS) —eye and vision problems p. 587 - 589 Repetitive strain injury (RSI) Computer addiction —when computer consumes entire social life Tendonitis—inflammation of tendon due to repeated motion Carpal tunnel syndrome (CTS)—inflammation of nerve that connects forearm to palm Next
Health Concerns of Computer Use ,[object Object],p. 588 Fig. 11-32 ,[object Object],[object Object],[object Object],Next
Health Concerns of Computer Use ,[object Object],p. 588 Fig. 11-33 Next
Health Concerns of Computer Use ,[object Object],p. 589 Fig. 11-34 ,[object Object],keyboard height: 23” to 28” feet flat on floor adjustable height chair with 4 or 5 legs for stability adjustable seat elbows at 90° and arms and hands parallel to floor Next
Health Concerns of Computer Use ,[object Object],p. 590 Fig. 11-35 ,[object Object],Next Click to view Web Link, click Chapter 11, Click Web Link from left navigation, then click Green Computing below Chapter 11
Summary of Computer Security, Ethics and Privacy Potential computer risks Safeguards that schools, business, and individuals can implement to minimize these risks Wireless security risks and safeguards Ethical issues surrounding information accuracy, intellectual property rights, codes of conduct, and information privacy Computer-related health issues, their preventions, and ways to keep the environment healthy Chapter 11 Complete

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Chapter11

  • 1. Chapter 11 Computer Security, Ethics and Privacy
  • 2. Chapter 11 Objectives Describe the types of computer security risks Identify ways to safeguard against computer viruses, worms, Trojan horses, botnets, denial of service attacks, back doors, and spoofing Discuss techniques to prevent unauthorized computer access and use Identify safeguards against hardware theft and vandalism Explain the ways software manufacturers protect against software piracy Define encryption and explain why it is necessary Discuss the types of devices available that protect computers from system failure Explain the options available for backing up computer resources Identify risks and safeguards associated with wireless communications Recognize issues related to information accuracy, rights, and conduct Discuss issues surrounding information privacy Discuss ways to prevent health-related disorders and injuries due to computer use Next
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  • 6. Internet and Network Attacks Video: Attack of the Mobile Viruses Next CLICK TO START
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  • 53. Summary of Computer Security, Ethics and Privacy Potential computer risks Safeguards that schools, business, and individuals can implement to minimize these risks Wireless security risks and safeguards Ethical issues surrounding information accuracy, intellectual property rights, codes of conduct, and information privacy Computer-related health issues, their preventions, and ways to keep the environment healthy Chapter 11 Complete