Failure of PKI in messaging

James A. Donald jamesd at
Mon Feb 12 16:43:07 EST 2007

Obviously financial institutions should sign their
messages to their customers, to prevent phishing.  The
only such signatures I have ever seen use gpg and come
from niche players.

I have heard that the reason no one signs using PKI is
that lots of email clients throw up panic dialogs when
they get such a message, and at best they present an
opaque, incomprehensible, and useless interface.  Has
anyone done marketing studies to see why banks and
massively phished organizations do not sign their
messages to their customers?

           James A. Donald

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