EDMONTON — Alberta’s elections agency says it believes more than 550 people accessed a voter list that is at the heart of a massive privacy breach involving a separatist group.

Elections Alberta says it believes 23 people were given full copies of the list while another 545 accessed it through a database the group made publicly available.

The group, called the Centurion Project, has said its goal was to identify and recruit as many supporters of Alberta independence as possible ahead of an expected referendum this fall.

The database was traced back to an official voter list Elections Alberta had legally distributed to a provincial political party containing the names and addresses of nearly three million Albertans.

The agency says cease-and-desist letters have been issued to people the Centurion Project says accessed the list.

The database was taken down last week following a court order, and Elections Alberta and RCMP have announced separate investigations into the data breach.

This report by The Canadian Press was first published May 7, 2026.

Jack Farrell and Lisa Johnson, The Canadian Press