Ransomware attack on Grass Valley
The City of Grass Valley has a notice on YubaNet that begins:
On June 29, 2021 the City of Grass Valley discovered an unknown source had made unauthorized access to our information systems. The perpetrators of this cyber attack informed the City they had obtained data from City systems and threatened to publish the data if the City did not pay ransom. The City took immediate actions to protect its systems and data, contacted local and federal law enforcement, and launched an investigation with the assistance of a professional cybersecurity firm.
Read the full notice on YubaNet.