Brazil tightens cyber focus on transport

In Brazil, recent cyber coverage has centered on preparedness and operational risk rather than on confirmed incidents. The clearest case in the material is the ransomware attack Braspress suffered in July 2024, when operating systems were compromised and the company had to take environments offline while it gradually restored operations.

What does the Braspress case show?

The Braspress case offered a clear example of operational impact in the transportation sector. According to Valor, the July 2024 attack affected the company’s operating systems and forced a phased recovery, with environments taken offline as restoration moved forward.

That episode now serves as a reference point in a broader discussion about cyber security’s place on the strategic agenda for Brazilian transport. Valor said the issue gained ground because of the operational risks it can create in a sector where service continuity is critical.

What changed in the power sector?

In Brazil’s power sector, the most visible issue is not a specific incident but a regulatory requirement. An AGÊNCIA DINO article published by Revista PEGN said Portaria No. 126/2026 requires cyber security and interoperability mechanisms.

The same sector coverage linked that framework to the challenges of smart metering. The core point, according to that report, is that grid modernization comes with new technical obligations to reduce risk and ensure compatibility between systems.

What role do critical infrastructure exercises play?

The Guardião Cibernético 8.0 simulations brought together critical areas including energy, transport, water resources and communications. The IEC institutional note, published by gov.br, shows that the official focus is on coordination exercises for essential infrastructure.

That kind of preparation fits the rest of the available material. On one side is the operational pressure on transport, with the Braspress case as a reference. On the other, the power sector is taking on formal cyber security and interoperability requirements, while state exercises rehearse responses for services that cannot stop.

What did ANEEL say about Enel SP?

ANEEL addressed an issue tied to extreme weather events that affected Enel Distribuição São Paulo, although the note does not describe a cyber security incident. The agency rejected Enel SP’s appeal against a decision that had denied a technical expert review related to those events.

That fact does not add a cyber case to the record, but it does form part of the regulatory and operational context around critical infrastructure in Brazil. In the material, that is the dominant reading, an agenda shaped by service continuity, technical requirements and readiness for disruptions, rather than a chain of confirmed attacks.