Connecting to a Google home

[BURNINGSKYES]

Hi, Recently I've discovered that Spotify allows for casting music to a google home (like a chrome cast). However, this is open to anyone connected to the wifi. I was hoping there would be some way to lock it to an account or only allow specific devices. Am I out of luck? 

[Joe]

Is this an issue at home or are you using a shared network? Unfortunately, this is a feature of Home and the only solution I've seen is to use a wireless router to create a private network as posted here.