KTNV reports that the Las Vegas Cancer Center was the victim of a ransomware attack over the Labor Day Weekend. The attack was discovered on September 7, when the center re-opened. The attackers reportedly accessed encrypted data. Patient data is in proprietary format and the center believes it would not be usable to the threat actors. The types of information that the threat actor(s) could access included patient names, addresses, dates of birth, social security numbers, medical records and insurance information.
Read more on KTNV.
In related coverage, the Las Vegas Review-Journal reports that about 3,000 were affected.
So far, there has been no mention of who the threat actors might be or how much ransom may have been demanded.
Updated Nov. 9: Pysa threat actors have claimed responsibility for this attack but have not dumped any data as of today. Thanks to @DF_CyberGuy for alerting us to this.