Mae Swyddfa’r Comisiynydd Gwybodaeth wedi cael gwybod am y digwyddiad hwn a bydd yn cynnal ei hadolygiad ei hun.
A full investigation into the incident is under way within Velindre NHS Trust, which will also consider any delays in the notification process. I have also asked my officials to establish a Data breach investigation group to review this episode, in order to determine future actions and provide assurance. I expect these to report within a month.