In 2025, the Brazilian Military Police (Polícia Militar) suffered a catastrophic 2TB data breach after hackers exploited vulnerabilities in a third-party vendor’s system, compromising millions of sensitive documents. The stolen data included personal details of officers, informants, operational records, and potentially classified intelligence, posing severe risks to national security, individual safety, and ongoing investigations. Cybersecurity experts warn the breach could fuel identity theft, extortion, or targeted attacks on law enforcement personnel. The incident, linked to supply-chain vulnerabilities, mirrors global trends in large-scale breaches, with parallels drawn to the 2022 Shanghai police leak. Authorities have yet to confirm the full scope, but the breach’s volume and sensitivity rank it among the year’s most severe, prompting international reviews of police data security protocols. The fallout threatens public trust in law enforcement’s ability to protect critical information, while insiders suggest unpatched software or insider access as likely attack vectors.