The Verge: Amazon reportedly has a ‘key’ to thousands of apartment buildings in
US.
[1]https://www.theverge.com/2021/7/26/22593871/amazon-key-for-business-thousands
-of-buildings-us-installation-incentives-privacy-concerns

References

   1. https://www.theverge.com/2021/7/26/22593871/amazon-key-for-business-thousands-of-buildings-us-installation-incentives-privacy-concerns