The Coleman Group of Companies says it was the target of a cyber-attack that led to some of its files being accessed.
It says some files may contain names, addresses and social insurance numbers of employees.
The attack was discovered and stopped the weekend of Feb. 20.
The company issued letters to current and former employees to let them know of the attack.
The Coleman Group hired a cybersecurity consultant to assist in the ongoing investigation.
Coleman Group of Companies includes Coleman Foods, the largest, family-owned independent grocery business in Atlantic Canada.