-This option (on Windows only) causes PuTTY to try to lock down the
-operating system's access control on its own process. If this
-succeeds, it should present an extra obstacle to malware that has
-managed to run under the same user id as the PuTTY process, by
-preventing it from attaching to PuTTY using the same interfaces
-debuggers use and either reading sensitive information out of its
-memory or hijacking its network session.
+This option (on Windows only) causes PuTTY (or another PuTTY tool) to
+try to lock down the operating system's access control on its own
+process. If this succeeds, it should present an extra obstacle to
+malware that has managed to run under the same user id as the PuTTY
+process, by preventing it from attaching to PuTTY using the same
+interfaces debuggers use and either reading sensitive information out
+of its memory or hijacking its network session.