Companies starting with H
229 breach filings from companies whose name starts with H. Select a company for the full answer and source.
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- H&H Color Lab, Inc.Yes — reportedNH · January 13, 2026
- H&H Color Lab, Inc.Yes — reportedNew Hampshire · January 13, 2026
- H&N Tax, Inc.Yes — reportedMassachusetts · February 21, 2026
- H&N Tax, Inc. dba CSA TaxYes — reportedNH · February 20, 2026
- H&N Tax, Inc. dba CSA TaxYes — reportedNew Hampshire · February 20, 2026
- H2 Builders LLCYes — reportedNH · April 27, 2026
- H2 Builders LLCYes — reportedNew Hampshire · April 27, 2026
- HackerOne IncYes — reportedIN · March 18, 2026
- HackerOne IncYes — reportedIndiana · March 18, 2026
- Hahn Loeser & Parks LLPYes — reportedIN · June 29, 2026
- Hahn Loeser & Parks LLPYes — reportedIndiana · June 29, 2026
- Hahn Loeser & Parks LLP (“Hahn Loeser”)Yes — reportedMassachusetts · June 16, 2026
- Haley’s Metal Shop, Inc.Yes — reportedNH · February 6, 2026
- Haley’s Metal Shop, Inc.Yes — reportedNew Hampshire · February 6, 2026
- Hall Aluminum ProductsYes — reportedIN · February 25, 2026
- Hall Aluminum ProductsYes — reportedIndiana · February 25, 2026
- Hallisey & D'Agostino, LLPYes — reportedVT · April 18, 2026
- Hallisey & D'Agostino, LLPYes — reportedVermont · April 18, 2026
- Hallisey & D'Agostino, LLPYes — reportedVermont · April 18, 2026
- Hallisey & D’Agostino, LLPYes — reportedNH · April 17, 2026
- Hamill & KaplanYes — reportedCA · August 6, 2026
- Hamill & KaplanYes — reportedCalifornia · August 6, 2026
- Hamilton Capital LLCYes — reportedIndiana · August 4, 2026
- Hamilton Capital, LLCYes — reportedMassachusetts · August 4, 2026
- Hampton Regional Medical CenterYes — reportedMassachusetts · March 4, 2026
- Hank’s Furniture, Inc.Yes — reportedME · May 15, 2026
- Hank’s Furniture, Inc.Yes — reportedMaine · May 15, 2026
- Hank’s Furniture, Inc.Yes — reportedMaine · May 15, 2026
- Hank’s Furniture, Inc.Yes — reportedTX · May 18, 2026
- Hannah Senesh Community Day SchoolYes — reportedMassachusetts · March 14, 2026
- Hanscom Federal Credit UnionYes — reportedMassachusetts · June 10, 2026
- HarbisonWalker International, IncYes — reportedIndiana · September 22, 2026
- HarbisonWalker International, Inc.Yes — reportedTexas · September 25, 2026
- HarbisonWalker International, Inc.Yes — reportedVermont · September 22, 2026
- Harbor Developmental Disabilities Foundation (d/b/a Harbor Regional Center)Yes — reportedCA · July 13, 2026
- Harbor Developmental Disabilities Foundation (d/b/a Harbor Regional Center)Yes — reportedCalifornia · May 28, 2026
- Harbor Developmental Disabilities Foundation (d/b/a Harbor Regional Center)Yes — reportedCalifornia · May 28, 2026
- Harbor Developmental Disabilities Foundation dba Harbor Regional CenterYes — reportedIN · April 22, 2026
- Harbor Fish MarketYes — reportedVermont · September 25, 2026
- Harman FitnessYes — reportedTexas · October 6, 2026
- Harmony Health Medical Clinic and Family Resource CenterYes — reportedCA · January 8, 2026
- Harmony Health Medical Clinic and Family Resource CenterYes — reportedCalifornia · January 8, 2026
- Harmony Insurance Co.Yes — reportedFlorida · June 28, 2026 · 450,000 affected
- Harowitz & Morrison PLLCYes — reportedIN · January 9, 2026
- Harowitz & Morrison PLLCYes — reportedIndiana · January 9, 2026
- Harper Executive GroupYes — reportedNH · March 23, 2026
- Harper Executive GroupYes — reportedNew Hampshire · March 23, 2026
- Harper Executive Group IncYes — reportedIN · March 18, 2026
- Harper Executive Group, Inc.Yes — reportedTX · March 20, 2026
- Harper Executive Group, Inc.Yes — reportedTexas · March 20, 2026
- Harris Beach Murtha Cullina PLLCYes — reportedIN · May 15, 2026
- Harris Beach Murtha Cullina PLLCYes — reportedIndiana · May 15, 2026
- Harrison County HospitalYes — reportedIN · April 17, 2026
- Harrison County HospitalYes — reportedIndiana · April 17, 2026
- Harrison Design AssociatesYes — reportedMassachusetts · February 24, 2026
- Harrison Design Associates, Inc.Yes — reportedNH · January 16, 2026
- Harrison Design Associates, Inc.Yes — reportedNew Hampshire · January 16, 2026
- Hartman Financial Advisors LLCYes — reportedIdaho
- Harvard Pilgrim Health Care, Inc.Yes — reportedIllinois · June 2, 2026
- Harvard UniversityYes — reportedNH · February 6, 2026
- Harvard UniversityYes — reportedNew Hampshire · February 6, 2026
- Harvey & Martin PLLCYes — reportedIndiana · July 6, 2026
- Harvey & Martin, PLLCYes — reportedNew Hampshire · July 8, 2026
- Harvey & Martin, PLLCStateYes — reportedMassachusetts · June 23, 2026
- Hasbro, Inc.Yes — reportedVermont · October 7, 2026
- Hausfeld LLPYes — reportedCA · June 25, 2026
- Hausfeld LLPYes — reportedCalifornia · June 25, 2026
- Hawaii Employer's Mutual Insurance CompanyYes — reportedIN · May 13, 2026
- Hawaii Employer's Mutual Insurance CompanyYes — reportedIndiana · May 13, 2026
- Hawaii Employers Mutual Insurance Company, Inc.Yes — reportedME · May 13, 2026
- Hawaii Employers Mutual Insurance Company, Inc.Yes — reportedMaine · May 13, 2026
- Hawaii Employers Mutual Insurance Company, Inc.Yes — reportedMaine · May 13, 2026
- Hawaii Mutual Insurance Company, Inc.Yes — reportedVT · May 13, 2026
- Hawaii Mutual Insurance Company, Inc.Yes — reportedVermont · May 13, 2026
- HCA Healthcare, Inc.Yes — reportedNew Hampshire · July 27, 2026
- Health Access Network Inc.Yes — reportedVermont · September 23, 2026
- Health Dimensions GroupYes — reportedIN · March 11, 2026
- Health Dimensions GroupYes — reportedIndiana · March 11, 2026
- Health Management Systems of AmericaYes — reportedIN · February 9, 2026
- Health Management Systems of AmericaYes — reportedVT · March 22, 2026
- Health Management Systems of AmericaYes — reportedVermont · March 22, 2026
- Health Management Systems of AmericaYes — reportedVermont · March 22, 2026
- Health Management Systems, Inc (a Gainwell Technologies Company)Yes — reportedMassachusetts · June 26, 2026
- HealthBeat, PLLCYes — reportedMassachusetts · April 1, 2026
- Healthcare Highways, LLCYes — reportedTexas · October 6, 2026
- Healthcare Interactive, Inc.Yes — reportedOR · January 7, 2026
- Healthcare Interactive, Inc.Yes — reportedSC · January 7, 2026
- Healthcare Interactive, Inc.Yes — reportedSouth Carolina · January 7, 2026
- Healthfirst Bluegrass IncYes — reportedIndiana · August 26, 2026
- HealthStream, Inc.Yes — reportedVermont · September 14, 2026
- Heart Care Centers Of IllinoisYes — reportedIllinois · January 15, 2026
- Heart City Health CenterYes — reportedIN · January 27, 2026
- Heart City Health CenterYes — reportedIndiana · January 27, 2026
- Heart of America Medical CenterYes — reportedIndiana · August 4, 2026
- Heart of America Medical CenterYes — reportedMassachusetts · August 5, 2026
- Heart of Texas Workforce Development Board, Inc.Yes — reportedTexas · September 11, 2026
- Heart South Cardiovascular GroupYes — reportedNH · April 13, 2026
- Heart South Cardiovascular GroupYes — reportedNew Hampshire · April 13, 2026
- Heavy Construction Systems Specialists, LLCYes — reportedTX · January 5, 2026
- Heavy Construction Systems Specialists, LLCYes — reportedTexas · January 5, 2026
- Heights Finance Holdings CoYes — reportedIndiana · August 11, 2026
- Heights Finance Holdings Co.Yes — reportedTexas · August 14, 2026
- Helix Energy Solutions Group, Inc.Yes — reportedTX · May 5, 2026
- Helix Energy Solutions Group, Inc.Yes — reportedTexas · May 5, 2026
- HelloSpokeYes — reportedIndiana · July 15, 2026
- Hematology Oncology ConsultantsYes — reportedNH · April 30, 2026
- Hematology Oncology ConsultantsYes — reportedNew Hampshire · April 30, 2026
- Hematology Oncology Consultants StateYes — reportedMassachusetts · May 1, 2026
- Hennessy Advisors IncYes — reportedIN · February 23, 2026
- HENNESSY ADVISORS, INCYes — reportedIL · February 5, 2026
- HENNESSY ADVISORS, INCYes — reportedIllinois · February 5, 2026
- Hennessy Advisors, Inc.Yes — reportedCA · February 24, 2026
- Hennessy Advisors, Inc.Yes — reportedNH · February 24, 2026
- Hennessy Advisors, Inc.Yes — reportedTX · February 25, 2026
- Herbert Smith Freehills Kramer (US) LLPYes — reportedVT · July 29, 2026
- Herbert Smith Freehills Kramer (US) LLPYes — reportedVermont · July 29, 2026
- Herbert W. Auger PAYes — reportedIN · March 27, 2026
- Herbert W. Auger PAYes — reportedIndiana · March 27, 2026
- Heritage BankYes — reportedCA · April 23, 2026
- Heritage BankYes — reportedTX · April 24, 2026
- Heritage BankYes — reportedWA · April 23, 2026
- Heritage BankYes — reportedWashington · April 23, 2026
- Heritage BankYes — reportedWashington · April 23, 2026
- Heritage Holdings LPYes — reportedIA · May 8, 2026
- Heritage Holdings LPYes — reportedIowa · May 8, 2026
- Herman & Chamow, CPAsYes — reportedIN · June 3, 2026
- Herman & Chamow, CPAsYes — reportedIndiana · June 3, 2026
- Heuer PublishingYes — reportedVermont · October 2, 2026
- Heywood Healthcare Inc., Henry Heywood Memorial Hospital, Athol Memorial Hospital, and Heywood Medical Group, Inc.Yes — reportedVermont · September 10, 2026
- Hibbert Retail, Inc.Yes — reportedVermont · September 8, 2026
- Hibbett Retail IncYes — reportedIndiana · September 8, 2026
- Hibbett Retail, Inc.Yes — reportedCalifornia · September 8, 2026
- Hibbett Retail, Inc.Yes — reportedTexas · September 9, 2026
- Hibbett Retail, Inc.Yes — reportedWashington · September 8, 2026
- Higginbotham Insurance Agency, Inc.Yes — reportedNH · March 3, 2026
- Higginbotham Insurance Agency, Inc.Yes — reportedTX · April 28, 2026
- Higginbotham Insurance Agency, Inc.Yes — reportedTexas · April 28, 2026
- High Mowing Organic SeedsYes — reportedIN · June 17, 2026
- High Mowing Organic SeedsYes — reportedVT · June 18, 2026
- High Mowing Organic SeedsYes — reportedVermont · June 18, 2026
- High Point Treatment Center, Inc.Yes — reportedNew Hampshire · March 2, 2026
- Hightower Holding, LLCYes — reportedNH · March 23, 2026
- Hightower Holding, LLCYes — reportedTX · March 25, 2026
- Hightower Holding, LLCYes — reportedTexas · March 25, 2026
- Hightower Holding, LLC (Hightower Advisors, LLC, Hightower Securities, LLC, Hightower Trust Company, N.A.)Yes — reportedWA · March 23, 2026
- Hightower Holding, LLC (Hightower Advisors, LLC, Hightower Securities, LLC, Hightower Trust Company, N.A.)Yes — reportedWashington · March 23, 2026
- Hightower Holding, LLC (Hightower Advisors, LLC, Hightower Securities, LLC, Hightower Trust Company, N.A.)Yes — reportedWashington · March 23, 2026
- Hightower Holdings, LLCYes — reportedVT · March 23, 2026
- Hightower Holdings, LLCYes — reportedVermont · March 23, 2026
- Hightower Holdings, LLCYes — reportedVermont · March 23, 2026