Apple has had a similar feature with their "Hide my email" feature which I use everywhere. Many products that deal with passwords (Firefox, iCloud) already chec

Apple has had a similar feature with their "Hide my email" feature which I use everywhere. Many products that deal with passwords (Firefox, iCloud) already check the haveibeenpwned database on a regular basis to determine if passwords have leaked, hopefully we'll start to see a similar policy for other credentials that can be used to determine how easily you can correlate other pieces of information based on a small set of data points.