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Since the start of 2016, cybercriminals have been increasingly turning to ransomware to attack healthcare organizations. Rather than attempting to steal the electronic protected health information of patients, malicious actors are blocking access to ePHI and are issuing ransom demands to restore access.
While large healthcare organizations such as MedStar Health are major targets for cybercriminals, healthcare organizations of all sizes are at risk of experiencing ransomware attacks, even small one-practitioner medical centers.
This week, one such practice has announced a ransomware attack has resulted in patients’ ePHI being encrypted. Ashland Women’s Health (AWH) is a small obstetrics and gynecology practice in Ashland, Kentucky. Earlier this month, AWH submitted a report of a hacking/IT incident to the Department of Health and Human Services’ Office for Civil Rights. The breach report indicates 19,727 patients were impacted.
This week, further information on the security breach has been released. The security breach was caused by a malicious actor who gained access to the computer system used by AWH and installed a ransomware variant called HakunaMatata. HakunaMatata ransomware is a variant of NMoreira ransomware.
While electronic protected health information was encrypted by the ransomware, a ransom payment was not made to regain access to data. AWH was able to recover all encrypted EHR data from backups.
The ransomware attack was reported to the FBI and law enforcement and an investigation is being conducted. AWH has now successfully restored patient data and has brought its systems back online. AWH experienced downtime of around two days following the attack while the infection was removed and data were restored. During that time, medical services continued to be provided, with staff resorting to pen and paper to record health information and schedule appointments.
In accordance with HIPAA Rules, breach notification letters will shortly be sent to all affected patients.