Navy simulates threats to submarine internet cables in operation off the coast of SP

The operation aims to reinforce the security of these structures, essential for communication between countries. According to the National Telecommunications Agency (Anatel), around 99% of Brazil's international data traffic passes through submarine cables.

During the exercise, different threat situations will be simulated at sea, on land and in digital systems. Monitoring and protection activities for important facilities are also planned.

According to the Navy, around 20 vessels and teams of marines will be mobilized. The operation will also feature Brazilian Air Force (FAB) aircraft, including a maritime patrol aircraft, and satellites.

The choice of Baixada Santista is related to the importance of the region for the submarine cable network that connects Brazil to other countries. These structures allow the transmission of information between continents and are used in services such as internet access, financial transactions and government communications.

The operation will bring together different public bodies and companies, including the Institutional Security Office of the Presidency of the Republic (GSI), the Ministry of Communications, Anatel and the Brazilian Committee for the Protection of Submarine Cables.

In this edition, the Navy's Cyber ​​Warfare Squadron and Brasil Terminal Portuário (BTP) will also participate for the first time. The presence of the squadron will make it possible to include threat simulations for digital systems.

BTP's participation highlights the relevance of integration with the port sector, involving the protection of systems used in the terminal's operation, container movement, loading and unloading activities, access and logistics.

Operation Trident III continues discussions held in June 2026, during an international meeting on the protection of submarine cables promoted by the Navy, in Niterói (RJ). At the time, representatives of public bodies, companies and navies from other countries discussed ways to protect these structures.