Privacy
Acclaim Cybersecurity Incident
October 28, 2026
Acclaim Health, a contracted home and community care service provider, has notified Ontario Health atHome of a cyber security incident that resulted in the encryption (i.e., rendered temporarily inaccessible) and theft of some patient health information. Acclaim Health is still actively investigating the incident, including the number of patients whose personal health information has been impacted and the scope of information involved.
Impacted patients who receive services from Acclaim Health in the Mississauga Halton and Hamilton, Niagara, Haldimand, Brant areas will be provided with more detailed information by Acclaim Health and/or Ontario Health atHome as soon as details of the incident are available.
Ontario Health atHome takes the privacy of our patients very seriously and has reported this incident to Ontario’s Information and Privacy Commissioner. We continue to work with Acclaim Health, the Information and Privacy Commissioner, and all relevant partners to address this incident and to provide impacted patients with more detailed information as soon as possible.
Patients and caregivers with questions or concerns may reach out directly to Acclaim Health at privacyofficer@acclaimhealth.ca or calling 905-827-8800, ext. 2445.
Patients who wish to file a complaint with the Information and Privacy Commissioner may contact the Commissioner’s Office directly:
https://www.ipc.on.ca
Information and Privacy Commissioner of Ontario
2 Bloor Street East, Suite 1400
Toronto, ON
M4W 1A8
Protecting privacy is a fundamental part of providing excellent care.
In Ontario, Ontario Health atHome is subject to provincial privacy legislation called the Personal Health Information Protection Act, 2004 (PHIPA) and the Freedom of Information and Protection of Privacy Act, 1990 (FIPPA), along with regulations and amendments.
To learn more about the ways that we protect your privacy and information and how you can access records, please explore the links below:
