Olympus published its response to the WannaCry ransomware event on May 19, 2017. WannaCry exploits the Windows vulnerability addressed by MS17-010, and Olympus tested and validated that patch for Knowledge Exchange (KE), IN10A, EndoCapsule, and Image Stream Medical nStream and VaultStream.
EndoWorks is handled differently. Customers may self-apply the patch after taking a full backup, which puts the endoscopy reporting database's recovery on the hospital. Take the backup first; ransomware is exactly the event it exists for.