Brazil's central bank reported a cyberattack on C&M Software, a tech services provider for financial institutions, prompting an immediate shutdown of access to its infrastructure. C&M's commercial director, Kamal Zogheib, confirmed the attack involved fraudulent client credentials but assured that critical systems remain operational. Six financial institutions, including BMP, experienced unauthorized access to reserve accounts, which are safeguarded and have no client impact. Ongoing investigations involve both the central bank and local authorities.