Stratus Technologies has suffered a ransomware attack that required systems to be taken offline to prevent the attack’s spread. As part of their response, Stratus also took their ActiveService Network (ASN) and Stratus Service Portal off-line. Stratus products are commonly used by banks, telecommunication providers, emergency call centers, and healthcare that require fault-tolerant 99.999% uptime. BleepingComputer has reached out to Stratus with further questions about the attack.
Source: https://www.bleepingcomputer.com/news/security/high-availability-server-maker-stratus-hit-by-ransomware/