On Wed, 11 Aug 2004 14:10:18 -0700, Secure Science Corporation
Advisory Notice <bugtraq () securescience net> wrote:
Add 2-factor authentication (passcode requirement) by default and cease
implicit trust of Caller-ID information.
T-Mobile's messaging system (in Indianapolis, at least. I do not know
if they have migrated to a single VM system) has a setting the user
can specify to require passcode when calling from mobile phone.