- From: Maciej Stachowiak <mjs@apple.com>
- Date: Mon, 14 Dec 2009 15:04:10 -0800
- To: Adam Barth <w3c@adambarth.com>
- Cc: Tyler Close <tyler.close@gmail.com>, Jonathan Rees <jar@creativecommons.org>, "Mark S. Miller" <erights@google.com>, Jonas Sicking <jonas@sicking.cc>, Arthur Barstow <Art.Barstow@nokia.com>, Ian Hickson <ian@hixie.ch>, Anne van Kesteren <annevk@opera.com>, public-webapps <public-webapps@w3.org>
On Dec 14, 2009, at 2:38 PM, Adam Barth wrote: > On Mon, Dec 14, 2009 at 2:13 PM, Tyler Close <tyler.close@gmail.com> > wrote: >> For example, the >> User Consent Phase and Grant Phase above could be replaced by a >> single >> copy-paste operation by the user. > > Any design that involves storing confidential information in the > clipboard is insecure because IE lets arbitrary web sites read the > user's clipboard. You can judge that to be a regrettable choice by > the IE team, but it's just a fact of the world. Information that's copied and pasted is highly likely to leak in other ways than just the IE paste behavior. For example, if it looks like a URL, users are likely to think it's a good idea to do things like share the URL with their friends, or to post it to a social bookmark site, or to Twitter it, or to send it in email. Even if it does not look like a URL, users may think they need to save it (likely somewhere insecure) so they don't forget. Regards, Maciej
Received on Monday, 14 December 2009 23:04:51 UTC