https://www.vice.com/en_us/article/zmjxvj/cities-asked-ring-to-share-registry-lists-of-customers-who-bought-surveillance-cameras

Cities and local police departments have asked Ring, Amazon's home security company, to share the names, home addresses, and email addresses of every person who has bought a home surveillance camera through taxpayer-funded subsidy programs Motherboard has learned.

Ring obtained personal customer information as a part of the company’s taxpayer-funded discount programs, in which cities subsidize the purchase of Ring surveillance cameras for residents. Motherboard has written about and explained these programs at length. Basically, Ring will match every dollar committed by a city through these discount programs. In other words, for every $100 residents save when buying a Ring product, the city pays $50 and Ring pays $50. Typically, cities invite Ring to sell discounted cameras at in-person events. Ring will also provide city discount codes that residents can use to buy discounted cameras online.