How to return false from a for loop if any of the conditions are false

I'm working on a function which should return false if any of the point positions are outside of the defined rectangle boundaries.

My current c++ code is as follows:

bool trackingPointsVisible(){
        //I've got 4 points here
        if(!points.empty()){
              // loop through each of the points
            for(int i=0; i<points.size(); i++){
                   //check if points' x and y positions are out of the boundaries
                if(points[i].x < -60 || points[i].x > 300 ||
                points[i].y < -60 || points[i].y > 300){
                   // if any of them are out return false 
                    return false;
                }else{
                   //if they're within the boundaries, return true
                    return true;
                }

            }
        }
  }

For some reason, it returns true even if one of the points if out of the specified boundaries. I don't think this should be the case. Should I rewrite this function and check each point individually or is there another approach?

Could anyone please point what am I doing wrong here? Thanks.