How to disable navigation user interface?

Hello,

The navigation user interface is being a real problem, any user can

access KM by just typing a simple url:

[http://<server>:<port>/irj/go/km/navigation/]

how to disable that? Also, removing the Read permission on KM

folders is not an option, since we use KM Navigation iViews to render

our public content and there are also some folders that ACL isn't even

the permission handler (eg.: /ume)

I have read this topic:

https://www.sdn.sap.com/irj/scn/thread?messageID=590450

but that was on 2005 so maybe ep5~6.0, and I could not find this navigation

component under my security zones (SAP NetWeaver 7.0 (2004s) SPS 14)

/security/sap.com/NetWeaver.KMC/low_safety/com.sap.km.cm/components/navigation

any ideas?

thanks in advance,

Rafael