Cookies are files on your computer that enable websites to remember your details.
When you visit a website, it can place a fi le called a cookie on your computer. This enables the website to remember your details and track your visits. Cookies can be a threat to
confi dentiality, but not to your data.
Cookies were designed to be helpful. For example, if you submit your ID when you visit a website, a cookie can store this data, so that you don’t have to re-enter it next time. Cookies also have benefi ts for webmasters, as they show which web pages are wellused, providing useful input when planning a redesign of the site.
Cookies are small text fi les and cannot harm your data. However, they can compromise your confi dentiality. Cookies can be stored on your computer without your knowledge or consent, and they contain information about you in a form you can’t access easily. And when you revisit the same website, this data is passed back to the web server, again without your consent.
Websites gradually build up a profi le of your browsing behavior and interests. This information can be sold or shared with other sites, allowing advertisers to match ads to your interests, ensure that consecutive ads are displayed as you visit different sites, and track the number of times you have seen an ad.
If you prefer to remain anonymous, use the security settings on your internet browser to disable cookies.
Sophos.com
Saturday, January 17, 2009
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