Privacy Foundation Exposes 'Email Wiretapping'
The Privacy Foundation has uncovered a method to spy on email messages sent in HTML format. By planting a JavaScript program in an HTML email, the message could be secretly returned to the sender every time it is forwarded. The Privacy Foundation Advisory suggests methods to prevent this security problem.Email Wiretapping, Privacy Advisory, Privacy Foundation Web Page.
A New Trick Gives Snoops Easy Access to E-Mail, New York Times, February 5, 2001 (registration required).