Sad to see so many people getting scam these days, One of the idea I have and wish someone could take the time to implement is a self-registering platform where you can declare your information was previously stolen and used in a scam - The system will hash this information in multiple way, without storing them, such that, banks, financial institutions, or even mobilephone providers (think sim swap attack) can submit some users information and said system would come back with a result based on some matching of hashes(eg first name, dob, address or last name, dob, social security number). Ideally, it would result in the banks doing more vigorous check on user's identity like actually seeing them in person if this check fails rather than taking everything submitted over some web-form as is.
I have had family member who had their identity stolen for many years and it kept on going, it's super frustrating.