diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 7f025a773..a266f172a 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+2014-08-14  Corinna Vinschen  <corinna@vinschen.de>
+
+	* security.sgml: Move to ../doc dir and rename to logon-funcs.xml.
+
 2014-08-14  Corinna Vinschen  <corinna@vinschen.de>
 
 	* path.sgml: Move to ../doc dir and rename to path.xml.
diff --git a/winsup/cygwin/security.sgml b/winsup/cygwin/security.sgml
deleted file mode 100644
index b286ef540..000000000
--- a/winsup/cygwin/security.sgml
+++ /dev/null
@@ -1,45 +0,0 @@
-<sect1 id="func-cygwin-logon_user">
-<title>cygwin_logon_user</title>
-
-<funcsynopsis><funcprototype>
-<funcdef>extern "C" HANDLE
-<function>cygwin_logon_user</function></funcdef>
-<paramdef>const struct passwd *<parameter>passwd_entry</parameter></paramdef>
-<paramdef>const char *<parameter>password</parameter></paramdef>
-</funcprototype></funcsynopsis>
-
-<para>Given a pointer ot a passwd entry of a user and a cleartext password,
-returns a HANDLE to an impersonation token for this user which can be used
-in a subsequent call to <function>cygwin_set_impersonation_token</function>
-to impersonate that user.  This function can only be called from a process
-which has the required NT user rights to perform a logon.</para>
-
-<para>See also the chapter "New setuid concept" in the Cygwin user's guide.
-</para>
-
-<para>See also <link linkend="func-cygwin-set-impersonation-token">cygwin_set_impersonation_token</link></para>
-
-</sect1>
-
-<sect1 id="func-cygwin-set-impersonation-token">
-<title>cygwin_set_impersonation_token</title>
-
-<funcsynopsis><funcprototype>
-<funcdef>extern "C" void
-<function>cygwin_set_impersonation_token</function></funcdef>
-<paramdef>const HANDLE <parameter>token</parameter></paramdef>
-</funcprototype></funcsynopsis>
-
-<para>Use this function to enable the token given as parameter as
-impersonation token for the next call to <function>setuid</function> or
-<function>seteuid</function>.  Use
-<function>cygwin_set_impersonation_token</function> together with
-<function>cygwin_logon_user</function> to impersonate users using
-password authentication.</para>
-
-<para>See also the chapter "New setuid concept" in the Cygwin user's guide.
-</para>
-
-<para>See also <link linkend="func-cygwin-logon_user">cygwin_logon_user</link></para>
-
-</sect1>