A novel ransomware attack forced insurance giant CNA to take systems offline and temporarily shutter its website. The Chicago-based company said it sustained a sophisticated cybersecurity attack on Sunday, March 21. The attack leveraged a new variant of the Phoenix CryptoLocker malware. CNA disconnected its systems from its network out of an abundance of caution and is currently providing workarounds for employees where possible so the company can continue operating to serve its customers. The company is currently in the midst of an ongoing investigation into the incident.
Source: https://threatpost.com/cna-hit-novel-ransomware/165044/