Prevent Photos app on OSX from launching when plugging in device The Photos app opens whenever I plug in my phone.  

How can this be prevented?

I have seen many solutions for the old iPhoto app that involve changing the "Connecting camera opens" option, but the new app has no such option.
With the iPhone plugged in, open the Image Capture app on your Mac. In the Image Capture window, left lower corner, choose which app should automatically open when you plug in your phone, chose "no application"