Re: By-products are always a risk.
Door bells are not a by-product, Ring was a seperate company styled as a "home security firm" untill amazon bought it back in Febuary 2018.
They should know better.
All it would take is the zxcvbn library to pick good passwords and run anything that passes against the HIBP API to chek ifi its pwned, and for belt and braces OAuth2 TOTP on top
