For additional protection, you should enable Tomcat to check for allowed referrer.
        
    
      Procedure
- 
            Edit the <TDC_HOME>\TalendDataCatalog\tomcat\conf\web.xml
               
                    file.
         
 
- 
            Uncomment the two filter sections in the Checks referer is
                        allowed section. 
            
The variable ${server.fqdn} is substituted with the
                    value of M_SERVER_FQDN in
                        tomcat.properties.
          
- 
            Add as many init-param sections as needed to allow
                    reference from other URLs.
         
 
- 
            Edit <TDC_HOME>\TalendDataCatalog\tomcat\conf\tomcat.properties
               
                    by changing the M_SERVER_FQDN variable from
                        localhost to
                        <myMMServer.myDomain>.