Disable cut, copy, and paste options.

<script language="text/javascript">
    // disable portal cut copy and paste options.
    $('body').bind('cut copy paste', function (e) {
            e.preventDefault();
    });

</script>

But I prefer to enable this option on localhost.

<script language="text/javascript">
    // disable portal cut copy and paste options.
    $('body').bind('cut copy paste', function (e) {

       // enable only localhost
       if (location.hostname === "localhost" || location.hostname === "127.0.0.1") 
        {
            return;
        }
        e.preventDefault();

    });

</script>