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Cookies

Cookies. By: Sydney Morris, Taylor Foster, Megan Cordrey, Zach Brooks. What are cookies?. A cookie is a piece of text that a Web server can store on a user's hard disk. Cookie data is simply name-value pairs stored on your hard disk by a Web site. . What are cookies? Continued.

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Cookies

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  1. Cookies By: Sydney Morris, Taylor Foster, Megan Cordrey, Zach Brooks

  2. What are cookies? • A cookie is a piece of text that a Web server can store on a user's hard disk. • Cookie data is simply name-value pairs stored on your hard disk by a Web site.

  3. What are cookies? Continued • Cookies save all the websites that you have searched. • They do slow down your computer if you let them build up.

  4. How do they work? • Used for an origin website to send state information to a user's browser and for the browser to return the state information to the origin site.

  5. How do they work? Continued • Cookies allow a Web site to store information on a user's machine and later retrieve it. The pieces of information are stored as name-value pairs.

  6. Damage? • Cookies cannot be programmed, cannot carry viruses, and cannot install malware on the host computer.

  7. Damage? Continued • Hackers are able to steal log ID’s/ Info. • Annoying pop-up ads caused by cookies can cause viruses.

  8. How does it get on your computer ? • Cookies are already on your computer when you first get the computer and there is no way to take this file off.

  9. How does it get on your computer ? Continued • Most people don’t know or realize that it is there because it is usually hidden. • Cookies cannot be downloaded by any link or website.

  10. Recommended steps? • When a computer is running slow, Tech Support will suggest deleting temporary files from your cache or history.

  11. Recommended steps? Continued • You can delete cookies, but any time you go to a web site it will store new cookies according to your visits. • In other words… You can never get rid of them.

  12. Vocabulary 1 • Persistent cookie- A persistent cookie will outlast user sessions. If a persistent cookie has its Max-Age set to 1 year, then, within the year, the initial value set in that cookie would be sent back to the server every time the user visited the server. This could be used to record a vital piece of information such as how the user initially came to this website. For this reason, persistent cookies are also called tracking cookies. • Secure cookie- A secure cookie is only used when a browser is visiting a server via HTTPS, ensuring that the cookie is always encrypted when transmitting from client to server. This makes the cookie less likely to be exposed to cookie theft via eavesdropping.

  13. Vocabulary 2 • Http Only cookie- The Http Only cookie is supported by most modern browsers. On a supported browser, an Http Only session cookie will be used only when transmitting HTTP (or HTTPS) requests, thus restricting access from other, non-HTTP APIs (such as JavaScript). This restriction mitigates but does not eliminate the threat of session cookie theft via cross-site scripting (XSS).[This feature applies only to session-management cookies, and not other browser cookies.

  14. Vocabulary 3 Zombie cookie- A zombie cookie is any cookie that is automatically recreated after a user has deleted it. This is accomplished by a script storing the content of the cookie in some other locations, such as the local storage available to Flash content, HTML5 storages and other client side mechanisms, and then recreating the cookie from backup stores when the cookie's absence is detected.

  15. Resources • www.wisegeek.com/what-are-computer-cookies.htm • en.wikipedia.org/wiki • www.whatarecookies.com • www.allaboutcookies.org

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