Middlesex-London Health Unit Shuts Systems After Cyber Incident

Summary
The Middlesex-London Health Unit took some systems offline after discovering a cyber incident, disrupting phone lines and software. It reported the incident to Ontario authorities and said an investigation is underway; any access to client information is unclear.
Key points
- The health unit said it discovered the incident on Thursday.
- It took some affected systems offline to prevent further unauthorized activity, making regular phone lines and many software systems temporarily inaccessible.
- The incident was reported to Ontario’s privacy commissioner and health ministry.
- Cybersecurity experts are assisting with containment, remediation and a forensic investigation.
- The investigation is in its early stages; the health unit said it is not yet clear whether personal or personal health information was affected.
Article Details
- Victim Organization
- Middlesex-London Health Unit (MLHU)
- Incident Type
- Cybersecurity incident; specific attack method not disclosed
- Affected Records
- Unknown; the health unit said it was unclear whether client information had been accessed.
- Affected Data Size
- Unknown
- Operational Impact
- The health unit took some affected systems offline to prevent further unauthorized activity. Regular phone lines and many software systems were temporarily inaccessible; modified services remained available, with high-risk public health requests receiving a prompt response.
- Ransom Or Extortion
- None reported
- Claim Status
- confirmed
