diff --git a/docs/faq/src/docbook/faq.xml b/docs/faq/src/docbook/faq.xml
index 2756ccd641..13e9745671 100644
--- a/docs/faq/src/docbook/faq.xml
+++ b/docs/faq/src/docbook/faq.xml
@@ -247,9 +247,18 @@
switching back to HTTP afterwards. It doesn't work - I just end up back at
the login page after authenticating.
This happens because sessions created under HTTPS, for which the session cookie is marked as
- secure, cannot subsequently be used under HTTP. The browser will not send the cookie
- back to the server and any session state will be lost (including the security context information).
- Starting a session in HTTP first should work as the session cookie won't be marked as secure.
+ secure, cannot subsequently be used under HTTP. The
+ browser will not send the cookie back to the server and any session
+ state will be lost (including the security context information).
+ Starting a session in HTTP first should work as the session cookie won't
+ be marked as secure (you will also have to disable Spring Security's
+
+ Session Fixation Protection support to prevent it from creating a new secure session.
+ Note that this is not a good idea in general, as any application which uses HTTP at all is vulnerable to
+ man-in-the-middle attacks. To be truly secure, the user should begin accessing your site in HTTPS and continue
+ using it until they log out. Even clicking on an HTTPS link from a page accessed over HTTP is potentially risky.
+ If you need more convincing, check out a tool like sslstrip.
+