A major U.S. healthcare provider has been hit by a ransomware attack that may have exposed patient records and other personal information, according to reports from Reuters. The incident adds to a growing list of cyberattacks targeting healthcare systems, where sensitive data and operational continuity are especially vulnerable.

The ransomware group behind the attack has claimed responsibility, saying it stole data from one of the country’s largest hospital networks. Reuters reported that patient records and personal details were among the information reportedly taken, though the full scope of the breach has not yet been publicly confirmed.

Healthcare organizations are frequent targets for cybercriminals because they store vast amounts of confidential information and often face intense pressure to restore services quickly. That combination can make hospitals and clinics more likely to pay close attention to attack demands, even as experts warn that ransom payments do not guarantee data recovery or prevent future leaks.

The latest breach underscores the growing security risks facing critical infrastructure in the United States. For patients, the consequences can extend beyond privacy loss to possible identity theft, fraud, and long-term concerns over how their medical information is handled.