Case file: Children's Hospital Los Angeles
Every government filing on this incident, the dates as stated, and the days to notice against each state's statute. Built from the records on Nov 9, 2026, agency link on every row. Not legal advice.
The incident
- Breach window
- Not stated in the filings
- Discovered
- Nov 29, 2017, as stated in the California letter
- State and federal records
- 1 filing, Dec 19, 2017
- Residents counted
- No state publishes a resident count for this incident
- Everyone affected
- No filing gives a total
- Information exposed
- Medical / health information, Date of birth, Postal address
- Offered to those affected
- No monitoring offer found in the letters we read
- Third party named
- No
- Days to notice
- Within the statutory period in California, counted from discovery to the state's first record
- Prior incidents
- 1 earlier incident on record for this organization
The letter: "What Happened On November 29, 2017, Children's Hospital Los Angeles (“CHLA”) learned that your child's confidential health information was inadvertently transmitted to the wrong insurance payor."
Filings
| Agency | Record date | People | In total | Days to notice | Links |
|---|---|---|---|---|---|
| California California AG | Dec 19, 2017 | Not published | 20 days, statute 30 days | Letter Record |
People is the count the filing gives, residents of the state unless marked total. Days to notice runs from the discovery date the letter states, or from the end of the breach window when no letter states one, to the date on the state's first record of the incident. "Over" marks a count past the days the state's statute allows for notice to residents. The statute's trigger is a question of fact, the days are arithmetic.
Notice timing, state by state
- 20 days from discovery (Nov 29, 2017) to the California record (Dec 19, 2017). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
The statutes
- California: 30 days to notify residents from discovery or notification of the breach, Cal. Civ. Code § 1798.82. Sample notice to the Attorney General when more than 500 Californians are notified, within 15 days of the consumer notice (effective 2026).
Prior incidents by Children's Hospital Los Angeles
| Records | Breach window | Filed with | People |
|---|---|---|---|
| Jan 13, 2017 | Oct 18, 2016 | California | n/a |
Filings more than six months apart are shown as separate incidents.
Sources and method
Records as published by California AG. Letter facts (discovery date, monitoring, third party) are read from the consumer letter the agency posted, 1 letter read for this incident, and quoted so you can check them. Texas and HHS publish no letters. First-seen times on each record page. Spot an error? Email support@breachtally.com with this page link.