Brazilian National Treasury

The Brazilian National Treasury is the federal agency responsible for managing the country's public debt administration and overseeing the issuance of government securities. It operates the Tesouro Direto platform, which allows retail investors to purchase federal bonds directly. In carrying out these functions, the Treasury formulates and executes fiscal policy related to borrowing, debt servicing, and cash management for the federal government. Its activities support the financing of public expenditures and the stability of the national financial system. The agency also provides technical guidance on sovereign risk management and debt sustainability analyses. These core responsibilities are performed from its headquarters in Brazil.

During the ransomware incident of 13 August 2021, the Brazilian National Treasury worked with the Ministry of Economy to contain the attack while confirming that its core debt‑management systems and the Tesouro Direto bond platform remained operational. Security specialists from the Treasury, the Digital Government Secretariat, and the Federal Police collaborated to assess the impact and coordinate the response. The attack occurred after a separate major cyber incident affecting another Brazilian government body, highlighting the growing threat landscape for public institutions. In response, the federal government had recently established a cyberattack response network to improve coordination across agencies, with the Digital Government Secretariat playing a central role in that initiative. As a federal entity, the Treasury operates under the authority of the Ministry of Economy and serves the federal government. Its specialized focus on debt management and bond distribution distinguishes it within the government's financial architecture.