Oshawa is sending some senior staff back to school for a refresher course on its Privacy Breach Response Policy and Procedure after private information was “ inadvertently ” leaked internally this summer . Fire Chief Derrick Clark sent a copy of an Excel file entitled ‘ 2021 Master Sick Report ’ via email to Commissioner of Community Services Ron Diskey on August 6 . The document included a listing of the names of all members of Fire Services staff who have taken time off due to illness in 2021 , affecting a total of 160 City staff . The document also included associated dates for sick days / leave , as well as more specific details in some cases , such as the reason for the absence . Diskey , who has worked for the City for nearly 40 years , replied to Clark ’s email in a forward to all members of the Corporate Leadership Team but inadvertently included a copy of the Master Sick Report . In response to receipt of the email and attachment , the incident was reported to the City Clerk and Information , Access and Privacy Officer that day . The City Clerk received confirmation from all members of the Corporate Leadership Team that the record at issue has been destroyed . Additionally , several members of the Corporate Leadership Team confirmed that they did not open the attachment and did n’t see the personal information . ;