GE Healthcare Centricity PACS Workstation 4.0 and 4.0.1 has a password of ddpadmin for the ddpadmin user, which has unspecified impact and attack vectors. NOTE: it is not clear whether this password is default, hardcoded, or dependent on another system or product that requires a fixed value.
https://twitter.com/digitalbond/status/619250429751222277
https://ics-cert.us-cert.gov/advisories/ICSMA-18-037-02
http://www.forbes.com/sites/thomasbrewster/2015/07/10/vulnerable-breasts/