International Business Machines Corporation (“IBM”)

International Business Machines Corporation (“IBM”) notified California AG on Sep 22, 2023 of a data breach. Data exposed: Medical / health information, Name.

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

Organization: International Business Machines Corporation (“IBM”)
Source: California AG · source record
Date reported: Sep 22, 2023
Date(s) of breach: n/a
Residents affected: Not published by this source
Data exposed: Medical / health information Name
Notice letter: Sample notice (PDF)
Discovered: Aug 2, 2023, as stated in the letter
"While IBM’s investigation identified, on August 2, 2023, that there was unauthorized access to personal information in the database, the investigation was unable to determine the scope of that access."
Days to notice: 51 days from discovery (Aug 2, 2023) to the California record (Sep 22, 2023). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82). Over the statutory period
Offered in the letter: 12 months of credit or identity monitoring through Experian
Third party: The letter attributes the incident to a vendor or service provider
First seen by BreachTally: 2026-10-30 15:56 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.