LockerGoga and MegaCortex ransomware have been hitting large corporate networks, sometimes lingering for months before deploying crypto-locking malware. A recent FBI flash alert, marked “TLP:AMBER,” was issued to certain U.S. businesses by the FBI, Bleeping Computer reports. The FBI is telling potential victims: Get your act together. The alert confirms what experts have been telling me for the past couple of years: That a. noisy end stage of an attack that may have already persisted for weeks or months.”]