It's a DETRAN's (DMV) database. So, driver license owners. Some say, including Brazil's president.<p>I read it first (in Portuguese) here: <a href="https://olhardigital.com.br/noticia/-exclusivo-detran-vaza-dados-pessoais-de-quase-70-milhoes-de-brasileiros/91308/" rel="nofollow">https://olhardigital.com.br/noticia/-exclusivo-detran-vaza-d...</a>