Hackers broke into business networks, stole customer records and used those details to send convincing fake bills. The campaign, called Operation Master, combined a VPN login bypass with attacks on web applications and a large-scale invoice fraud system aimed mainly at Brazilian customers. The activity stretched from April to mid-September 2026. Investigators found evidence of unauthorized access through seven GlobalProtect gateways in four countries, along with stolen records from at least nine database systems. The attackers later reused customer information to make fraudulent payment requests look personal and credible. Researchers from SOCRadar identified the operation after tracing an exposed server to successive...
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