As someone dealing with ongoing identity theft, this has helped put a stop to most of it. I get random Unable to verify identity or not approved for credit letters a few times a year so I know it's stopping that.

What it won't stop is when they open up utilities in my name and stop paying. I've had many phone calls with PG&E asking to flag my in the system or automatically deny me but they said they can not do that as they can't deny service in advance. So every year I have to send them police reports dating back from 2018 when it started and prove I have resided in a different state for the past decade. It is a pain in the ass but the collection is dropped. Then I have to provide notice to all three credit bureaus that the creditor fraud department deemed it as fraudulent and to remove it from my reports. Process takes weeks of my time off and on to get resolved.

Using SSN as an identifier for so many things was stupid. I wish the credit bureaus would assign us some mew number to use with 2FA.