If you want to accept cookies, that should be up to you. There are several ways for Web site visitors, or your enterprise employees, to handle cookies. They can accept them all, or reject them all, assuming the user has a browser that allows either choice. They could use a cookie interceptor that allows them to decide on the merits of each cookie. Or they could accept them as a default, and then regularly wipe them off the disk with a cookie cruncher.
Total rejection can limit the user's Web experience.
Decisions made on each cookie, as available through products like McAfee's Guard Dog, will give the user control but can be irritating. This is not exhaustive, but it is a good compromise. In July, Microsoft announced Cookie Management features to be included in future versions of Internet Explorer. They are not a direct security issue, but can compromise privacy. Marketing companies can match cookie information to clickstream analysis to target users.