Joslin Diabetes Center, Inc.

Joslin Diabetes Center, Inc. notified California AG on Sep 18, 2020 of a data breach, which occurred on May 20, 2020. Data exposed: Social Security number, Financial / bank account, Medical / health information, Date of birth, Name.

Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization: Joslin Diabetes Center, Inc.
Source: California AG · source record
Date reported: Sep 18, 2020
Date(s) of breach: Thursday, May 14, 2020Wednesday, May 20, 2020
Residents affected: Not published by this source
Data exposed: Social Security number Financial / bank account Medical / health information Date of birth Name
Notice letter: Sample notice (PDF)
Discovered: May 2020, as stated in the letter
"Blackbaud reported that, in May 2020, two months before notifying Joslin, it discovered a ransomware incident that resulted in encryption of certain Blackbaud systems."
Days to notice: 121 days from the end of the breach window (May 20, 2020, no discovery date in the letter) to the California record (Sep 18, 2020). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
Third party: The letter attributes the incident to a vendor or service provider
First seen by BreachTally: 2026-10-30 16:09 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

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Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.