A New Post over at Krebs on Security:
NVA said it discovered the ransomware outbreak on the morning of Sunday, Oct. 27, and soon after hired two outside security firms to investigate and remediate the attack. A source close to the investigation told KrebsOnSecurity that NVA was hit with Ryuk, a ransomware strain first spotted in August 2018 that targets mostly large organizations for a high-ransom return.
NVA declined to answer questions about the malware, or whether the NVA paid the ransom demand.
Ransomware continues to plague unprepared companies. This is the second time these poor people have been victims.