In my app, I let users register/login with their social media accounts i.e. LinkedIn, Google and Facebook.
My question is once I get the profile picture URL for the user, should I save the image in my system OR am I allowed to simply save the URL and let the image be served from the user's social media account? I'm not even sure if I'd be allowed to save the image as technically it could be the property of LinkedIn, Google or Facebook.