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SickKids Data Breach Exposes Employee and Job Applicant Information

SickKids Data Breach Exposes Employee and Job Applicant Information

First seen 21 Aug 2026, 00:22 UTC • •

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ThreatCluster AI
ThreatCluster •August 21, 2026 at 23:48 UTC
  • •SickKids experienced a data breach due to a third-party software vulnerability.
  • •Personal information of current and former employees and job applicants was exposed.
  • •The hospital is offering 24 months of credit monitoring to affected individuals.

The Hospital for Sick Children (SickKids) reported a cybersecurity incident exposing personal information of current and former employees and job applicants. The breach was linked to a vulnerability in a third-party software application, affecting the hospital's external Careers website, which has since been restored. Clinical systems and patient records remained unaffected, and patient care continued as usual. SickKids has engaged external cybersecurity experts to investigate the incident. The hospital has not disclosed the specific categories of data involved or the number of individuals affected. Affected individuals will be notified directly, and all potentially impacted individuals are being offered 24 months of complimentary credit monitoring and identity protection services. This incident follows previous security breaches at SickKids, including a ransomware attack in December 2022.

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Timeline

2023-06-02
CVE-2023-34362 published
A vulnerability in third-party software used by SickKids was published, leading to the breach.
BleepingComputer
2026-08-20
SickKids discloses cybersecurity incident
SickKids reported unauthorized access to employee and job applicant information due to a software flaw.
Torontotoday.Ca
2026-08-21
SickKids confirms data breach details
The hospital confirmed the breach affected its external Careers website and engaged cybersecurity experts for investigation.
Theregister

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