The convention is to _underscore_private_methods. camelCased methods can't be accessed via URL.

some code

/**
 * Sometimes it is useful to hide some actions, so they can't be accessed even though 
 * the dispatcher/router thinks the controller should invoke these methods.
 * 
 * Basically this is a convenience-function built upon the filter-chaining. Therefore 
 * call $this->hideActions(...) from the controllers constructor just like any other 
 * beforeFilter.
 * 
 * Examples:
 * 
 * $this->hideActions('forbid,invisible')
 * $this->hideActions(array('except'=>array('visible')) // all but 'visible'
 * $this->hideActions(array('only'  =>array('invisible')) 
 *
 * @param mixed $mixed  
 */
function hideActions($mixed)
{
    if (is_array($mixed) && (isset($mixed['only']) || isset($mixed['except']))){
        $condition = $mixed;            
    }else{
        $actions = Ak::toArray($mixed);
        $condition = array('only'=>$actions);
    }
    $this->beforeFilter(array('_forbidAction'=>$condition));
}

function _forbidAction()
{
    //your code: throw an error or redirect 
}

hope its useful

Ok, you've found a serious bug that we have introduced without realizing. I've just added some unit tests and fix this issue on rev.1145

Now _underscored_actions will be completely ignored by the router, so they will default to index. Regarding AkActionController actions you can't access them anymore.

Thanks for coming with this up!