On Tue, 1 May 2001, Brandon wrote: > > > Reminds me of SecureCard, the credit card sized random number generator > > synchronized with a login password challenge. Could use Think Cash to > > seed it so that you don't have to solve a puzzle every email. > > But then it wouldn't stop mechanical spam. >
True. It has to be combined with the credit scheme or a time based scheme to allow the recipient to renew or cancel a sequence.
