Cec, you can read more about cookies here:
http://en.wikipedia.org/wiki/Browser_cookieFrom the same site.
MisconceptionsSince their introduction on the Internet, misconceptions about cookies have circulated on the Internet and in the media. In 2005, Jupiter Research published the results of a survey, according to which a consistent percentage of respondents believed some of the following claims:
Myth: Cookies are like worms and viruses in that they can erase data from the user's hard disks;
Myth: Cookies are a form of spyware in that they can read personal information stored on the user's computer;
Myth: Cookies generate popups;
Myth: Cookies are used for spamming;
Myth: Cookies are only used for advertising.
Cookies are in fact only data, not program code: they cannot erase or read information from the user's computer. However, cookies allow for detecting the Web pages viewed by a user on a given site or set of sites. This information can be collected in a profile of the user. Such profiles are often anonymous, that is, they do not contain personal information of the user (name, address, etc.) More precisely, they cannot contain personal information unless the user has made it available to some sites. Even if anonymous, these profiles have been the subject of some privacy concerns.
According to the same survey, a large percentage of Internet users do not know how to delete cookies.
MCC