Attackers used adversary-in-the-middle attacks to steal passwords, hijack sign-in sessions and skip authentication and then use victim mailboxes to launch BEC attacks against other targets.
Source: Healthcareitnews.com and Read More

Hospital Ransomware Raises Patient Mortality 38%: Black Hat and HIMSS Launch Healthcare Summit – Tech Times
Hospital Ransomware Raises Patient Mortality 38%: Black Hat and HIMSS Launch Healthcare Summit Tech Times

