https://www.theguardian.com/lifeandstyle/2021/jun/26/i-spy-are-smart-doorbells-creating-a-global-surveillance-network

They were sold as gadgets that meant you would never miss a delivery. But now doorbell cameras – from Amazon’s Ring to Google’s Nest – are recording our every move

I have got a new doorbell. It’s brilliant. It should be; it cost £89. It’s a Ring video doorbell; you’ll have seen them around. There are others available, made by other companies, with other four-letter names such as Nest and Arlo. When someone rings my doorbell, I’m alerted on my smartphone. I can see who is there, and speak to them.