HTTP Cookies
HTTP cookies, sometimes known as web cookies or just cookies, are parcels of text sent by a server to a web browser and then sent back unchanged by the browser each time it accesses that server. Cookies are used for authenticating, tracking, and maintaining specific information about users, such as site preferences.
Common Misconception(s):
- Cookies are like viruses or worms
- Cookies are used for spamming
Cookies are in fact only data and not program code like viruses. However certain websites use cookies to collect user data & create a profile of the user. This could be a privacy issue. Hence it is very important to understand how to enable/delete/disallow cookies.
Browser Settings:
- Microsoft Internet Explorer 6.0+
- Select Internet Options from the Tools menu.
- Click on the Privacy tab.
- Make sure the settings are at least Medium to block third-party cookies that do not have a privacy policy.
- Mozilla Firefox
- Go to the Tools menu.
- Select Options.
- Select the Privacy icon in the left panel.
- Check the box corresponding to Allow sites to set cookies.
- Keep until drop down has options to set your privacy level.
Source: http://en.wikipedia.org/wiki/HTTP_cookie