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Regulator-posted notice

Breach notice filed by City of Hope (March 2016)

Organization named: City of Hope Provisional: identity as filed, not yet matched to the directory
Type as the source lists it: Hacking/IT Incident

What the sources say

HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals) Primary notice

Posted on the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals) with a submission date of March 4, 2016.

Organization as reported
City of Hope, CA
Entity type as reported
Healthcare Provider
Category as reported
Hacking/IT Incident
Location of information as reported
Email
Submission date
March 4, 2016
Observed by BreachRecords
2026-10-18 16:15 UTC (revision 14599, row:5738)
Archived copy
Held in the private archive (provenance)

The covered entity (CE), City of Hope, received a phishing email on January 18, 2016, causing unauthorized access to several employee email accounts. The protected health information (PHI) involved in the breach included patients' names, medical record numbers, dates of birth, addresses, email addresses, telephone numbers, clinical information, test results, and dates of service and for one patient, the social security number and financial information. Approximately 1,024 individuals were affected by the breach. The CE provided breach notification to HHS, affected individuals, and the media, and also posted substitute notice. Following the breach, the CE blocked access to a form in the embedded link contained in the phishing email, blocked the sender of the phishing email from sending additional emails, updated its spam filter, removed the email from the inboxes of users who received it, and sent an email to all staff to advise them of the issue. Additionally, the CE began updating its anti-phishing defenses and has upgraded its firewall. OCR provided the CE with technical assistance regarding the Security Rule including risk analysis and risk management.

The source's own words, from the revision above.

Figures, per source

  • 1,024 individuals affected (total reported), as reported by the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals), source date March 4, 2016, revision observed 2026-10-18.

Each figure is one source's figure with the basis that source gave. Figures from different sources are shown side by side and are not added, averaged or chosen between.

Timeline

Source dates are the dates the sources give. Observation dates are when BreachRecords recorded each revision.

  • Submission date at the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals)
  • Observed by BreachRecords (revision 14599)
  • Approved by a reviewer

Organizations linked by a reviewer

  • City of Hope Named as the covered entity Provisional: identity as filed, not yet matched to the directory Linked 2026-10-19, method provisional.

Archived evidence

  • 3dbc27dd5742e041cc1e7fe18cc669e2901fbd3b86b7007ed27948ff4d406e1f
    text/csv, 5,530,996 bytes, from the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals), retrieved 2026-10-18 16:15 UTC. Archived privately · Provenance · Source page

Records reflect source filings as of the dates shown. BreachRecords is not a regulator.

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