I don't know the technical details of how to inhibit part of the download -
yet! - but
doubtless others can help some more.
Two reasons for thinking it is possible - one is that this came up as a con
which had defrauded banks recently. There was a report in the UK national
media about the con with a somewhat scathing suggestion that the banks were
leaving themselves wide open and should download less (but no details
thereof).
Second, I see it empirically; my Windows client has a feature
whereby objects stored in the TIF (Temporary Internet Files) do not get
deleted so I have learnt to delete them manually at regularly intervals;
and so have learnt just how much or how little sites download; some
download everything, others do not. Of course for the ones that do not, I
do not see all it is they are doing so again do not have the
technical details. But I am talking about different server
implementations, not
about a change to the customisation of the caching on the client side.
I believe this is a question of server versus client side processing. The
modern trend is to perform as much processing as possible client side as
this then enables the server to process more clients, but it then requires
the client to be given everything it might need (making spoofing easy). Do
more server side and the client gets less.
Is it more than Frederic suggests, disabling mouse button 2? I think so; I
will tell you as and when I find out. But his point about using
print-screen
to get a screenshot as a counter-counter measure is a good one - the
images, at least, must be downloaded as far as the screen :-)
Tom Petch
-----Original Message-----
From: Parry Aftab <parry(_at_)aftab(_dot_)com>
To: 'Tom Petch' <nwnetworks(_at_)dial(_dot_)pipex(_dot_)com>; 'Mark Smith'
<ipv6(_at_)c753173126e0bc8b057a22829880cf26(_dot_)nosense(_dot_)org>
Cc: franck(_at_)sopac(_dot_)org <franck(_at_)sopac(_dot_)org>;
ietf(_at_)ietf(_dot_)org <ietf(_at_)ietf(_dot_)org>
Date: 23 December 2003 23:49
Subject: RE: [Fwd: [isdf] need help from the ietf list...can someone
postthis for me? or allow me to post directly?]
What do you mean about having a site not download?
-----Original Message-----
From: Tom Petch [mailto:nwnetworks(_at_)dial(_dot_)pipex(_dot_)com]
Sent: Monday, December 22, 2003 1:04 PM
To: Mark Smith
Cc: parry(_at_)aftab(_dot_)com; franck(_at_)sopac(_dot_)org;
ietf(_at_)ietf(_dot_)org
Subject: Re: [Fwd: [isdf] need help from the ietf list...can someone
postthis for me? or allow me to post directly?]
Banks do make it extraordinarily easy for their sites to be spoofed by
allowing all their html, .TXT etc to appear in my Temporary Internet
Folder
without even me having to lift a finger.
You can make web sites which don't download - time for banks to learn
about
this.
Tom Petch, Consultant
-----Original Message-----
From: Mark Smith
<ipv6(_at_)c753173126e0bc8b057a22829880cf26(_dot_)nosense(_dot_)org>
To: Valdis(_dot_)Kletnieks(_at_)vt(_dot_)edu
<Valdis(_dot_)Kletnieks(_at_)vt(_dot_)edu>
Cc: parry(_at_)aftab(_dot_)com <parry(_at_)aftab(_dot_)com>;
franck(_at_)sopac(_dot_)org
<franck(_at_)sopac(_dot_)org>;
ietf(_at_)ietf(_dot_)org <ietf(_at_)ietf(_dot_)org>
Date: 22 December 2003 13:37
Subject: Re: [Fwd: [isdf] need help from the ietf list...can someone
postthis for me? or allow me to post directly?]
I've heard of one recently where the actual page was from the
legitimate
bank web site, but the dialog box window asking for username and
password
detail was the spoofed component. Everythink, including HTTPS locks,
URLs
etc displayed would have looked, and actually were legitimate.
On Sun, 21 Dec 2003 20:05:02 -0500
Valdis(_dot_)Kletnieks(_at_)vt(_dot_)edu wrote:
On Sun, 21 Dec 2003 18:40:57 EST, Parry Aftab said:
It's a spoof, phished e-mail. No such credit card. I just confirmed
with
the powers that be in PayPal/eBay. The scams are good enough to
confuse
even ietf members. See the problem? How can someone tell this was a
phishing expedition?
Damned good one, they even got their URL into PayPal's FAQ:
https://www.paypal.com/cgi-bin/webscr?cmd=_help-ext&leafid=1782
Either this is a whole new level of phishing, or the left hand
doesn't
know
what the right hand is doing. You tell me.
We need some tech guidance?
Yes, PayPal apparently needs some. guidance in getting their info
pages
to correspond to their policy - see the above URL, see the mail I
quoted,
and then see this URL:
https://www.paypal.com/cgi-bin/webscr?cmd=_help-ext&leafid=56413
Also might want to have another chat with your powers that be, they
seem to be out of touch with what their company and their business
partners over at Providian are actually doing.