When created, cookies normally don’t contain any personal information. They don’t scan your computer or do any kind of investigation to find out your personal information. Any personal information they might contain is a result of your own input on a website’s form. When a cookie does store personal information, this information is coded in such a way that it is unreadable to any third party who happens to access your cookie folder. The only computer that can read and decode the information is the server that created the cookie in the first place.
In addition to encrypting any information stored in cookies, some websites add extra layers of security to browsers’ cookie handling processes: store only anonymous but unique content on local cookies; or store personal information on the website’s server and make it accessible only by matching with it the anonymous cookie stored on your computer.
Information regarding changing your cookie setting in your web browser.
You can delete your cookies at any time using the setting in your web browser, here you can also disable cookies, but this will probably mean that certain functions on websites may not work correctly.
If you wish to restrict or even block cookies, the help function within your browser should tell you how too. Alternatively, you may wish to visit www.aboutcookies.org, which contains comprehensive information on how to do this on a wide variety of desktop browsers.