How to secure private GeoJSON while rendering it on Google Maps

I want to render GeoJSON data using Google Maps API and at the same time would want to secure it from being stolen.

At present the GeoJSON data is loaded via Google MAPS JS API map.data.loadGeoJson('https://whatever.com/custom.json'), which gets the data by a CORS request to my site. By seeing all the requests from the page, its very easy to get hold of this GeoJSON data. My apps asset is this GeoJSON data.

Is there way I can secure the GeoJSON data?