What this means:
Often the information that you have copied onto your computer's clipboard can be read by the sites you visit or other snoops on the Web. Think about it - have you ever copied the contents of a sensitive email, or a name, phone number, address, or even credit card number?
What you can do about it:
Using Anonymizer services (such as the I.D. Protection Suite) while you surf prevents accidental exposure of sensitive data such as clipboard contents, form autofill contents, and other information while online.