I feel like the author made two mistakes that anyone who goes after scammers should know. First is to never trust the caller. Didn't matter what info they have.

I feel like the author made two mistakes that anyone who goes after scammers should know. First is to never trust the caller. Didn't matter what info they have. Second is never give your 2fa. Who cares if some third party product has some wonky scheme that requires it. Don't do it.