Policy question: blocking user access to Teamviewer info

CRThelpdesk

We're using TeamViewer in a corporate environment but need to block end-user access to the local client ID/PW (they have no need of this and we already have one instance of a user giving out the information to a vendor so that vendor could remote into their system). I've looked for a policy for this but have yet to find anything (nor a forum post about it). The closest I've found are discussions about making local settings changes which is going to be difficult for us with hundreds of computers.

Any help is greatly appreciated.