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Course ILT Internet transactions and security Unit objectives Learn how to purchase goods online by using credit cards and Web-based forms Describe the.

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Presentation on theme: "Course ILT Internet transactions and security Unit objectives Learn how to purchase goods online by using credit cards and Web-based forms Describe the."— Presentation transcript:

1 Course ILT Internet transactions and security Unit objectives Learn how to purchase goods online by using credit cards and Web-based forms Describe the concepts of Web security, cookies, caches, Web site protection, digital certificates, encryption, and firewalls

2 Course ILT Topic A Topic A: Internet transactions Topic B: Web security considerations

3 Course ILT Internet transactions E-commerce business models: –Business-to-business –Business-to-consumer –Business-to-employee –Business-to-government –Government-to-consumer –Consumer-to-consumer

4 Course ILT To ensure secure ordering, check: Store credentials The company has a registered Web site The company’s contact information is listed The company’s return and refund policies The Web site host is a secure server

5 Course ILT Topic B Topic A: Internet transactions Topic B: Web security considerations

6 Course ILT Cookies Store information on user’s computer Contain details of user’s visit Used by Web site for revisits Stored in the folder C:/Windows/Cookies

7 Course ILT Cache Stores a local copy of a Web page Increases the speed of browsing Displays a local copy

8 Course ILT Protecting a Web site Encrypt HTML code Disable page caching Disable right-clicking and printing Password-protect the site Insert a copyright notice Install firewalls

9 Course ILT Digital certificates Authenticate the holder Are issued by a trusted third party Two types of certificates: –Server –Personal

10 Course ILT Encryption Translates information into an unreadable format Used to protect –Code –E-mail messages –Internet transactions –Any communication between server and client

11 Course ILT Firewalls Electronic mechanism to block –Unauthorized users –Spam –Viruses Software program, hardware device, or combination of both Inspect and filter all incoming traffic Placed between an intranet and the Internet

12 Course ILT Unit summary Learned about purchasing goods online by using credit cards and Web- based forms Learned about the concepts of Web security, cookies, caches, Web site protection, digital certificates, encryption, and firewalls


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