Bryan Sullivan over at Microsoft has published a lengthy article on the advantages of URL writing to prevent certain types of attacks.
"Tim Berners-Lee once
famously wrote that "cool URIs don't change." His opinion was that
broken hyperlinks erode user confidence in an application and that URIs
should be designed in such a way that they can remain unchanged for 200
years or more. While I understand his point, I'll venture to guess that
when he made that statement he hadn't foreseen the ways in which
hyperlinks would become a means for hackers to attack innocent users.
like cross-site scripting (XSS
), cross-site request forgery (XSRF
open-redirect phishing are routinely propagated through malicious
hyperlinks sent in e-mail messages. (If you're unfamiliar with these
attacks, I recommend reading about them at the Open Web Application Security Project (OWASP) Web.)
We could mitigate much of the risk of these vulnerabilities by
frequently changing our URLs—not once every 200 years but once every 10
minutes. Attackers would no longer be able to exploit application
vulnerabilities by mass e-mailing poisoned hyperlinks because the links
would be broken and invalid by the time the messages reached their
intended victims. With all due respect to Sir Tim, while "cool" URIs
may not change, secure ones certainly do."
Read more: http://msdn.microsoft.com/en-us/magazine/dd458793.aspx