COOKIES - PowerPoint PPT Presentation

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COOKIES

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  1. COOKIES

  2. INTERNET COOKIES • What are they • Where are they found • What should you do about them

  3. INTERNET COOKIES • MISCONCEPTION • A SMALL PROGRAM • SEARCHES FOR PERSONAL INFORMATION • CAN HARM YOUR COMPUTER • IDENTIFIES YOU TO BUISINESSES

  4. INTERNET COOKIES • ACTUAL DEFINITION • Short pieces of data used by web servers to help identify web users • Placed on your hard drive by server • Identifies your IP address during your visit • Helpful on shopping sites

  5. INTERNET COOKIES • WEB BROWSER REQUESTS A FILE FROM A SERVER • IF NO COOKIE, SERVER ISSUES ONE • COOKIE IS SENT TO SERVER- IF ALREADY EXISTENT • SERVER READS COOKIE AND SENDS IT BACK WITH UPDATE

  6. INTERNET COOKIES • COOKIE EXPIRATION • NO EXPIRATION DATE • PERSISTENT

  7. INTERNET COOKIES WHO CAN SEE THE COOKIES? Only the server that put the cookie on your hard drive. Larger sites can set a domain attribute for other servers in the same subdomain

  8. INTERNET COOKIES • WHAT INFO CAN COOKIES RETURN? • IP ADDRESS • YOUR TYPE OF BROWSER • OPERATING SYSTEM • NUMBER OF VISITS TO WEB SITE • VOLUNTEERED INFORMATION

  9. INTERNET COOKIES SHOPPING COOKIES IDENTIFIES YOU WITH A NUMBER KEEPS TRACK OF YOUR SHOPPING CART AT CHECK OUT - IT LISTS YOUR SELECTIONS

  10. INTERNET COOKIES • WHY A BAD REPUTATION FOR COOKIES?? • WHEN USED AS A TRACKING DEVICE • CAN SEE WHAT WEB PAGES YOU VISIT, HOW OFTEN, AND HOW LONG • CLICKING ON AD BANNERS • USED TO INFER YOUR INTERESTS

  11. INTERNET COOKIES • THE IMFAMOUS DOUBLECLICK • LARGE PROVIDER WITH AD BANNERS ON MANY SITES • COOKIES ARE VISBILE ON MULTIPLE SITES FOR TRACKING • CAN SEE SEARCH STRINGS YOU TYPE INTO SEARCH ENGINES • FORMS RICH PROFILES OF USERS • THREATENED TO PERSONALIZE

  12. INTERNET COOKIES • WHERE ARE THESE COOKIES ON YOUR HARD DRIVE?? • DEPENDS ON WEB BROWSER • C:\WINDOWS\COOKIES • C:\WINDOWS\PROFILES\COOKIES DIRECTORIES IN NT OR WINNT

  13. INTERNET COOKIES • WHAT TO DO ABOUT THEM • IN BROWSER TOOLS\INTERNET OPTIONS\TEMPORARY INTERNET FILES-- DELETE THEM • IN C:\WINDOWS\COOKIES, SELECTIVELY DELETE THEM

  14. INTERNET COOKIES • MANAGE COOKIES FROM BROWSER • TOOLS\INTERNET OPTIONS\PRIVACY\ADVANCED PROMT BEFORE ACCEPTING OR BLOCK • REMEMBER SOME SITES REQUIRE COOKIES FOR ACCESS!!

  15. INTERNET COOKIES • MANY COOKIE TOOLS TO MANAGE COOKIES WITH • AD-AWARE WILL FIND ALL SPYWARE AND TRACKING COOKIES http://www.lavasoft.de/software/adaware/ • WWW.COOKIECENTRAL.COM/FILES.HTM • WWW.GUIDESCOPE.COM/HOME/

  16. INTERNET COOKIES • P3P- PRIVACY PREFRENCES PROJECT • EMERGING INDUSTRY STANDARD FOR USERS TO GAIN MORE CONTROL OVER THEIR PRIVATE INFORMATION • IN IE 6.0 IT READS THE PRIVACY POLICY ON WEB SITES AND ALLOWS YOU TO SET YOUR TOLERANCE.