Cookies (Cambridge (CIE) IGCSE Computer Science)
Revision Note
Written by: Robert Hampton
Reviewed by: James Woodhouse
Cookies
What is a cookie?
A cookie is a tiny data file stored on a computer by browser software that holds information relating to your browsing activity
Typically a cookie will contain:
Browsing history - what websites you have visited
Login information - usernames & passwords
Preferences - language/font size/themes
The two types of cookie are:
Session - Created and replaced every time a user visits a website
Persistent - Created and saved the first time a user visits a website, retained until they expire
What is the Privacy and Electronic Communications Regulations (2003)?
The Privacy and Electronic Communications Regulations (2003) is a law that governs the use of cookies
Any website that wants to store a cookie must:
Tell users the cookies are there
Explain what the cookies are doing
Obtain users consent to store the cookie
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