https://www.bleepingcomputer.com/news/security/us-coast-guard-says-ryuk-ransomware-took-down-maritime-facility/

The U.S. Coast Guard (USCG) published a marine safety alert to inform of a Ryuk Ransomware attack that took down the entire corporate IT network of a Maritime Transportation Security Act (MTSA) regulated facility.

While the incident is still currently being investigated, the USCG says that a phishing email is most likely the point of entry within the MTSA facility's network.