BreachCensus

Tandem Diabetes Care, Inc.

HealthcareUnited States of America

SEC EDGAR CIK 0001438133

Tandem Diabetes Care, Inc. is a healthcare organisation in California. It appears on the Massachusetts Attorney General breach-notification register and the California Attorney General breach-notification register with 1 confirmed incident (2 filings); the most recent notice was filed on March 17, 2020.

Data as of September 6, 2026.

Sources

Confirmed incident

Filed in CA, WI and MA

The same incident was filed separately with 3 jurisdictions within a few days of each other (CA, WI and MA) — shown here as one incident.

Occurred
January 17, 2020
Disclosed
March 17, 2020

Timeline

  1. March 17, 2020
    Reported to regulator Regulator

    CA AG breach notification: an unknown number of California residents affected

    source
  2. March 17, 2020
    Reported to regulator Regulator

    WI AG breach notification: an unknown number of Wisconsin residents affected

    source
  3. March 17, 2020
    Reported to regulator Regulator

    MA AG breach notification: 99 Massachusetts residents affected

    source
What a California notice means

Required under Cal. Civ. Code §1798.82. A copy of the notification must be sent to the Attorney General when a single breach requires notifying more than 500 California residents.

Note: no affected-count is published on this register.

California breach-notification register ↗

What a Massachusetts notice means

Required under M.G.L. c. 93H. Notice to the Attorney General is required for a breach affecting any number of Massachusetts residents' personal information -- the statute sets no minimum count.

Note: the count is Massachusetts residents only, not a total.

Massachusetts breach-notification register ↗

Related

Same sector and location

Disclosed around the same time