This system does not reveal a visitor's identity. A Web site other than the one that sets the cookie cannot read the cookie. Most cookies are limited in time. You can set up your Web browser to inform you when cookies are set or to prevent cookies from being set. Children should ask their parents before sending any information about themselves.
Children using online services are subject to several risks.
The best way to assure that children are having positive online experience is to be aware of what they are doing.