From: Masataka Ohta
"good *if* and only if"?
With cookies, a network is as secure as a telephone or fax network, which
is *GOOD* enough for credit card companies.
Not exactly. It's pretty easy to intercept any packet on the Internet,
the case for regular phones. Nevertheless, I've read some warnings from
credit companies about not using wireless phones because of security
concerns. Especially, if you live in a crowded area.