Nine of Ontario, Calif.-based Prime Healthcare's hospitals were caught up in a data breach involving the MOVEit file transfer software, databreaches.net reported Dec. 6.

Stockton, Calif.-based Dameron Hospital is rescheduling procedures after a cyberattack, according to a Dec. 5 report from the local NBC affiliate KCRA.

Mountainside Medical Center in Montclair, N.J., and Pascack Valley Medical Center in Westwood, N.J., are no longer refusing ambulances after a cyberattack on Ardent Health Services caused the hospitals to divert them, patch.com reported Dec. 4. 

The HHS is urging healthcare organizations to patch a new vulnerability affecting NetScaler ADC, formerly Citrix ADC, and NetScaler Gateway. 

Patient information may have been compromised at Corewell Health as the communications software company the organization uses was hit by the massive MOVEit breach that affected companies around the U.S.

Seattle-based Fred Hutchinson Cancer Center took its IT systems down following a Thanksgiving-week cyberattack, the Seattle Times reported Dec. 1.

It likely wasn't by happenstance that cybercriminals attacked a major U.S. health system the week of Thanksgiving, IT security chiefs told Becker's.

Summerfield, Fla.-based Lakeview Healthcare System discovered that an unauthorized individual forcefully entered its Leesburg, Fla.-based Lakeview Specialist Facility and stole medical records containing protected health information. 

A Russian national pleaded guilty to his involvement in a ransomware plot that attacked U.S. hospitals, causing millions of dollars in losses.

The Nov. 23 ransomware attack on Nashville, Tenn.-based Ardent Health Services has impacted 30 hospitals across six states, WKRN reported Nov. 29. 

Patient information may have been compromised at Premier Health as the communications software company the organization uses was hit by the massive MOVEit breach that affected companies around the U.S., Dayton Daily News reported Nov. 28. 

A former University of Iowa Community HomeCare staff member and a former patient filed a proposed class-action lawsuit against UI Community HomeCare and UI Community Medical Services, part of UI Health Care, alleging the organization was negligent during a March data breach, The Gazette reported Nov. 28. 

On Nov. 22, officials from the Cybersecurity and Infrastructure Security Agency alerted Ardent Health Services about malicious cyber activity impacting its computer systems the day before the organization identified a ransomware attack on its facilities and affiliates, CNN reported Nov. 27. 

In response to the ransomware attack on Nashville, Tenn.-based Ardent Health Services and its affiliates, Stormont Vail Health took action by augmenting staffing levels at its hospital, emergency department and Express Care clinics, the Topeka Capital-Journal reported Nov. 28. 

Mission Community Hospital in Los Angeles is notifying patients that an unauthorized party gained access to its IT network in May, compromising patient information.

Tri-City Medical Center in Oceanside, Calif., has reinstated its EHR platform and resumed ambulance admissions after being hit by a cyberattack Nov. 9 that forced its systems offline, KPBS reported Nov. 27. 

An outage that has affected hospitals in at least four states across the South and Midwest is being attributed to a ransomware attack on Ardent Health Services, based in Nashville, Tenn.

Ambulances and emergency vehicles are being redirected at Pascack Valley Medical Center in Westwood, N.J., and Mountainside Medical Center in Montclair, N.J., due to a ransomware attack, WABC reported Nov. 27.

Hospitals in at least four states across across the South and Midwest experienced disruptions Nov. 24 due to potential cybersecurity incidents, although there is no evidence officially linking the incidences.

Warren (Pa.) General Hospital reported a data breach affecting nearly 169,000 patients.