Sensitive information requires the protection of secure password blocks. Any computer program can be written to scan your computer while it is running, in the background, and store information. If the program is later running while you are on the Web, it is also an easy task for that program to send information with out you knowing. Yet we do not seem to worry about it . This information assists the open design of the Web and cross platform interaction etc.
Cookies are 'text only' files .
Conforming to the protocol, server generated IDs etc are encrypted, stopping other scripts from understanding the information. If at all concerned, delete cookies from your cookies folder regularly. Cookies can be deleted at startup Windows users can try adding the following two lines to their Autoexec.bat startup file. The first line ensures that file attributes are set for deletion. The second line then deletes those files.