Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

Wisconsin Department of Revenue

1 breach171K affected in allGovernmentrevenue.wi.gov

SSNs printed on tax booklets mailed to 171,000 Wisconsin taxpayersVendor breach exposed Social Security numbers.Vendor breach171K affectedGovernmentUSUnverifiedJan 1, 2007
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Every breach here links to its sources and official notices. Across Glyph: lawsuits, incidents and outages.

Added2026-09-25
Wisconsin Department of Revenue, 2007-01-01
Added2026-09-25
Wisconsin Department of Revenue