Dexcom, Inc.

Dexcom, Inc. notified California AG on Nov 13, 2026 of a data breach, which occurred on Nov 2, 2026. Data exposed: Social Security number, Date of birth, Name.

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

Organization: Dexcom, Inc.
Source: California AG · source record
Date reported: Nov 13, 2026
Date(s) of breach: Monday, November 2, 2026
Residents affected: Not published by this source
Data exposed: Social Security number Date of birth Name
Notice letter: Sample notice (PDF)
Discovered: Nov 2, 2026, as stated in the letter
"On November 2, 2026, we determined that some of your information may have been involved in an incident involving unauthorized access to certain employee accounts."
Days to notice: 11 days from discovery (Nov 2, 2026) to the California record (Nov 13, 2026). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
Offered in the letter: credit or identity monitoring through Experian
Third party: The letter attributes the incident to a vendor or service provider
First seen by BreachTally: 2026-11-14 00:01 UTC

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

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