In theory the unique id produced by the scan could be salted by you, uniquely for each website or application, and then provided to the site. This would keep aggregators from being able to track all your activity, or at least it would if they didn’t already have fingerprinting techniques that do it without the need of another unique identifier.
If the biometric ID is collected and stored by someone else, not only have I lost my anonymity, I’ve also lost control of my identity and there’s no way for me to stop that happening.
In theory the unique id produced by the scan could be salted by you, uniquely for each website or application, and then provided to the site. This would keep aggregators from being able to track all your activity, or at least it would if they didn’t already have fingerprinting techniques that do it without the need of another unique identifier.
If the biometric ID is collected and stored by someone else, not only have I lost my anonymity, I’ve also lost control of my identity and there’s no way for me to stop that happening.
This is unequivocally bad for privacy.