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Confirmed breach

Melzer's Fuel Service data breach

USUnited States · Melzer's Fuel Service, Inc.

Melzer's Fuel Service (United States) notified the Wisconsin Department of Agriculture, Trade and Consumer Protection of a data breach on 26 February 2026. It told that state about 1 Wisconsin residents; the total can be higher. Exposed: Financial account and card details and Names. The breach began on 31 August 2025, 179 days before it was reported.

Status
Confirmed breach
People affected
1 Wisconsin residents (one state’s count; the total can be higher)
Reported
26 February 2026
Breach began
31 August 2025
Time to tell
179 days (the median in California’s notices over the last year: 154 days)

What was exposed

  • Financial account and card details
  • Names

Sources

Official notices are read by code from the regulator’s own register. More notices to Wisconsin. · Corrections and changes

If Melzer's Fuel Service had your data

  1. Look for Melzer's Fuel Service, Inc.’s own notice or letter: it should say what of yours was involved. Keep it.
  2. Call your bank on the number printed on your card (never one from a message), check recent payments and ask for a new card.
  3. Expect scams that use your details: calls, texts or emails pretending to be Melzer's Fuel Service, Inc., your bank or the police. Never give codes or passwords, never approve a sign-in you did not start, never move money.

One email to confirm first. We use your address only for this alert, and one click deletes it.

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From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Official registers · Corrections and changes · Found a mistake? Tell us and we correct it.