Approximately 326,800 patients at five hospitals in southwestern Ontario are expected to receive a letter, noting their information was compromised in the October 2023 cyberattack.
![](https://timsdaily.com/wp-content/uploads/2024/04/image-BTpvHt.jpeg)
Approximately 326,800 patients at five hospitals in southwestern Ontario are expected to receive a letter, noting their information was compromised in the October 2023 cyberattack.