Internet cookies

Internet cookies

• 1.
  A SEMINAR ON INTERNET COOKIES Presented by: Userdetails here
• 2.
  CONTENTS  Introduction.  Whyare these files called “ Cookies “ ?  Cookies Type.?  Which best describes an internet cookie?  Whats the point?  Mmmm!! Cookies.  The Problem with Cookies.  Introduction to “Doubleclick Inc.”  Breakdown of Cookie Parameters ?  Are cookies Dangerous to my computer?  Can I delete Cookies?  Conclusion
• 3.
  WHAT ARE COOKIES? A cookie is a piece of text that a Web server can store on a user's hard disk. Cookies allow a Web site to store information on a user's machine and later retrieve it.
• 4.
  WHY ARE THESEFILES CALLED “ COOKIES “ ? A cookie is a well-known computer science term that is used when describing an opaque piece of data held by an System.
• 5.
  TYPE OF COOKIES Persistent Cookie  Non-Persistent Cookie
• 6.
  PERSISTENT COOKIE  Persistentcookies help websites remember your information and settings when you visit them in the future.  These remain on your hard drive until you erase them or they expire. How long a cookie remains on your browser depends on how long the visited website has programmed the cookie to last.
• 7.
  NON-PERSISTENT/SESSION COOKIE  Theseare temporary and are erased when you close your browser at the end of your surfing session. The next time you visit that particular site it will not recognise you and will treat you as a completely new visitor as there is nothing in your browser to let the site know that you have visited before.
• 8.
  KNOWING THE BASICS: In the Business Week survey in 2000, only 40% of the randomly selected knew what an Internet cookie was.
• 9.
  WHAT’S THE POINT? Sites use cookies to…  Track number of visitors  First timers vs. returning visitors  How often the user visits the site.
• 10.
  WHERE ARE COOKIES? You can find cookie files on your hard drive, your “C” drive.
• 11.
  MMMM! COOKIES…  Theyremember usernames for various sites that require log-in  Also have the option to remember your passwords for you!  They allow you to shop as you browse via online shopping carts!
• 12.
  THE PROBLEMS WITHCOOKIES  Multiple users on the same hard drive  Family computer, internet cafes  Credit car7d fraud  Easily erasable  Throw off site’s total counts  Can contain spyware!  Can pass on personal information without user’s permission (email address, phone number, credit card number, etc.)
• 13.
  DOUBLECLICK INC.  Developedcookie program that can follow and save user internet browsing.  Such cookie files are saved into text profiles.  Profiles can be extensive and detailed.  Serves over 200 billion ads per month.
• 14.
  BENEFITS OF DOUBLECLICK: Advertisers!  Allows internet advertisers to place their ads on sites or pages which will reach their target audiences
• 15.
  BREAKDOWN OF COOKIE PARAMETERS As wehave just seen, a cookie contains more than simply a name and a value. In fact, a cookie has 6 parameters that can be passed to it:  The name of the cookie,  The value of the cookie,  The expiration date of the cookie,  The path the cookie is valid for,  The domain the cookie is valid for,  The need for a secure connection to exist to use the cookie. Two of these are mandatory (its name and its value). The other four can be set manually or automatically.
• 16.
  ARE COOKIES DANGEROUSTO MY COMPUTER? Nooooo…..….. A cookie is a simple piece of text. It is not a program. It cannot be used as a Virus.Your browser (not a programmer) can save cookie values to your hard disk if it needs to, but that is the limit of the effect on your system.
• 17.
  CAN I DELETECOOKIES? Yes. Whether you use Internet Explorer or Netscape, your cookies are saved to a simple text file that you can delete as you please. In order to do this properly, remember to close your browser first. This is because all your cookies are held in memory until you close your browser. So, if you delete the file with your browser open, it will make a new file when you close it, and your cookies will be back. Remember that deleting your cookie file entirely will cause you to "start from scratch" with every web site you usually visit. So, it may be preferable to open the cookies.txt file and remove only the entries you don't like, or go to the cookies folder and delete the files matching servers you don't want.
• 18.
  Cookies are userfriendly.Cookies are not harmful for your system. They just store your data/information,you can privately access later. Cookies remains alive in your system with your information as long as it’s expiry time or may die after your browser close. CONCLUSION