Data Breaches · Supply Chain

SickKids Data Exposure Stays Outside Patient Systems

Toronto’s Hospital for Sick Children (SickKids) said a cybersecurity incident exposed personal information for some current and former employees and job applicants, and that the problem came from third-party software. The hospital said its clinical systems and patient records were not affected.

The flaw sits in a vendor-connected system that held HR-style data, so the exposure is privacy loss rather than disruption to care. In plain terms: a breach in an outsourced application reached staff and applicant records, but it did not spill into the systems that support patient treatment.

For hospitals that outsource recruiting or personnel platforms, the boundary matters: a compromise in that layer can still create a data breach without touching clinical operations. What remains at stake here is the confidentiality of employee and applicant files, not patient care systems.

2 sources · Aug 21

CVE-2023-34362

NVD KEV

Known exploited · CISA KEV

CVSS 9.8 CRITICAL: in Progress MOVEit Transfer before 2021.0.6 (13.0.6), 2021.1.4 (13.1.4), 2022.0.4 (14.0.4), 2022.1.5 (14.1.5), and… Known ransomware campaign use. EPSS 100% (100th percentile).

CISA federal remediation date Jun 23 · date passed

Timeline

Sources

Part of the PlainSec briefing for 2026-08-22

Every edition of this story: SickKids Data Exposure Stays Outside Patient Systems

More from today