“This data includes all medical services and management of healthcare contracts in the Brazilian health system, particularly the Brazilian military police,” the post reads. The attacker posted a sample that is yet to be analyzed by security researchers, which allegedly includes invoices for medical care, administrative protocols, regulatory certificates, and clinical patient data. In its writeup, Cybernews explained how the data might be abused: “When this kind of data is leaked, it could often lead to identity theft or medical fraud. This is not the first time the citizens of Brazil had their sensitive data leaked. Given that by 2021 data, Brazil has 214 million people, it could be that information on the entire population of Brazil was contained in that database.