Companies starting with M
436 breach filings from companies whose name starts with M. Select a company for the full answer and source.
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- McClallen & Associates, P.C. dba McClallen LawYes — reportedNew Hampshire · February 26, 2026
- McClallen LawYes — reportedMassachusetts · March 27, 2026
- McClarty Farms LLCYes — reportedCA · July 13, 2026
- McClarty Farms LLCYes — reportedCalifornia · July 13, 2026
- McCoyd, Parkas & Ronan LLPYes — reportedME · June 10, 2026
- McCoyd, Parkas & Ronan LLPYes — reportedMaine · June 10, 2026
- McCoyd, Parkas & Ronan LLPYes — reportedMaine · June 10, 2026
- McCoyd, Parkas, & Ronan LLPYes — reportedIN · June 11, 2026
- McCoyd, Parkas, & Ronan LLPYes — reportedVT · June 10, 2026
- McDermott Will & Schulte LLPYes — reportedIndiana · August 28, 2026
- McDonnell Capital ManagementYes — reportedNebraska · February 11, 2026
- McElroy, Deutsch, Mulvaney & Carpenter LLPYes — reportedNew Hampshire · March 12, 2026
- McEwen and Associates, Inc.Yes — reportedTX · June 1, 2026
- McEwen and Associates, Inc.Yes — reportedTexas · June 1, 2026
- McKeever Varga & SenkoYes — reportedIndiana · September 21, 2026
- McKennaYes — reportedIN · March 13, 2026
- McKennaYes — reportedIndiana · March 13, 2026
- McKenzie Creative BrandsYes — reportedIndiana · September 30, 2026
- McKenzie Creative BrandsYes — reportedVermont · September 30, 2026
- MCKINLEY HEALTH CENTER – UNIVERSITY OF ILLINOIS URBANA – CHAMPAIGN CAMPUSYes — reportedIllinois · February 17, 2026
- McLeod Physician Associates IIYes — reportedSC · June 5, 2026
- McLeod Physician Associates IIYes — reportedSouth Carolina · June 5, 2026
- McNeelyLaw LLP and Subro Solution IncYes — reportedIN · March 24, 2026
- McNeelyLaw LLP and Subro Solution IncYes — reportedIndiana · March 24, 2026
- MEBS Global ReachYes — reportedIndiana · September 30, 2026
- MEBS Global ReachYes — reportedVermont · September 30, 2026
- Med Atlantic, Inc.Yes — reportedNH · January 7, 2026
- Med Atlantic, Inc.Yes — reportedNew Hampshire · January 7, 2026
- MedCore Health SystemsYes — reportedCalifornia · July 10, 2026 · 847,000 affected
- Medenet IncYes — reportedNebraska · May 28, 2026
- Medenet, Inc. (“Medenet”)Yes — reportedMassachusetts · May 29, 2026
- Media Sales Plus, Inc.Yes — reportedMassachusetts · January 12, 2026
- MedImpact Healthcare Systems, Inc.Yes — reportedCalifornia · September 25, 2026
- MedImpact Healthcare Systems, Inc.Yes — reportedOregon · September 26, 2026
- MedImpact Healthcare Systems, Inc.Yes — reportedTexas · September 29, 2026
- MedPeds Associates of SarasotaYes — reportedIN · March 16, 2026
- MedPeds Associates of SarasotaYes — reportedIndiana · March 16, 2026
- MedRevenu, LLCYes — reportedCA · February 3, 2026
- MedRevenu, LLCYes — reportedCalifornia · February 3, 2026
- Medtronic IncYes — reportedIN · June 29, 2026
- Medtronic Inc.Yes — reportedCA · June 29, 2026
- Medtronic Inc.Yes — reportedOR · June 29, 2026
- Medtronic Inc.Yes — reportedTX · June 30, 2026
- Medtronic Inc.Yes — reportedVT · June 28, 2026
- Medtronic Inc.Yes — reportedWA · June 29, 2026
- Medtronic Inc.Yes — reportedWashington · June 29, 2026
- Meitus Strohm LLPYes — reportedIN · May 22, 2026
- Meitus Strohm LLPYes — reportedIndiana · May 22, 2026
- Melissa A. Caouette, Chapter 13 TrusteeYes — reportedNH · February 17, 2026
- Melissa A. Caouette, Chapter 13 TrusteeYes — reportedNew Hampshire · February 17, 2026
- melvin mora incYes — reportedCA · March 9, 2026
- melvin mora incYes — reportedCalifornia · March 9, 2026
- Melwood, Inc.Yes — reportedNH · January 26, 2026
- Melwood, Inc.Yes — reportedNew Hampshire · January 26, 2026
- Melzer’s Fuel Service Inc. (“MFS”)Yes — reportedMassachusetts · February 26, 2026
- Memberclose LLCYes — reportedIN · January 15, 2026
- Memberclose, LLCYes — reportedNH · January 20, 2026
- Memberclose, LLCYes — reportedNew Hampshire · January 20, 2026
- MemberSource Credit UnionYes — reportedCA · May 8, 2026
- MemberSource Credit UnionYes — reportedIN · May 7, 2026
- MemberSource Credit UnionYes — reportedMT · May 5, 2026
- MemberSource Credit UnionYes — reportedMontana · May 5, 2026
- MemberSource Credit UnionYes — reportedMontana · May 5, 2026
- MemberSource Credit UnionYes — reportedTX · May 11, 2026
- Mercadien P.C., CPAsYes — reportedNew Hampshire · July 20, 2026
- Mercadien PC Certified Public AccountantsYes — reportedIN · February 17, 2026
- Mercadien PC Certified Public AccountantsYes — reportedNH · January 5, 2026
- Mercadien PC Certified Public AccountantsYes — reportedSC · February 23, 2026
- Mercadien PC Certified Public AccountantsYes — reportedSouth Carolina · February 23, 2026
- Mercadien PC Certified Public AccountantsYes — reportedTX · February 24, 2026
- Mercedes-Benz USA, LLCYes — reportedMassachusetts · March 31, 2026
- Mercer Advisors Inc.Yes — reportedCA · March 31, 2026
- Mercer Advisors Inc.Yes — reportedTX · April 2, 2026
- Mercer Advisors Inc.Yes — reportedWA · March 31, 2026
- Mercer Advisors Inc.Yes — reportedWashington · March 31, 2026
- Mercer Advisors Inc.Yes — reportedWashington · March 31, 2026
- Mercor io CorporationYes — reportedNebraska · June 25, 2026
- Mercor.io (LiteLLM)Yes — reportedWashington · June 26, 2026
- Mercor.io CorporationYes — reportedCA · June 25, 2026
- MERCOR.IO CORPORATIONYes — reportedIL · March 27, 2026
- Mercor.io CorporationYes — reportedTX · June 26, 2026
- Mercor.io CorporationYes — reportedVT · June 25, 2026
- Mercor.io CorporationYes — reportedVermont · June 25, 2026
- Mercury Systems, Inc.Yes — reportedMassachusetts · May 28, 2026
- MERIDIAN HEALTH PLAN OF ILLINOISYes — reportedIL · April 28, 2026
- MERIDIAN HEALTH PLAN OF ILLINOISYes — reportedIllinois · April 28, 2026
- Merkle Inc.Yes — reportedNH · February 6, 2026
- Merkle Inc.Yes — reportedNew Hampshire · February 6, 2026
- MESA Products IncYes — reportedIN · March 30, 2026
- MESA Products IncYes — reportedIndiana · March 30, 2026
- META PLATFORMS, INC.Yes — reportedIL · May 31, 2026
- Meta Platforms, Inc.Yes — reportedME · June 5, 2026
- Meta Platforms, Inc.Yes — reportedMaine · June 5, 2026
- Meta Platforms, Inc.Yes — reportedMaine · June 5, 2026
- Metal Pros LLCYes — reportedIN · March 27, 2026
- Metal Pros LLCYes — reportedIndiana · March 27, 2026
- Methodist Homes of Alabama & Northwest FloridaYes — reportedIN · January 5, 2026
- Methodist Homes of Alabama & Northwest FloridaYes — reportedIndiana · January 5, 2026
- Metropolitan Life Insurance CompanyYes — reportedCA · March 9, 2026
- Metropolitan Life Insurance CompanyYes — reportedCalifornia · March 9, 2026
- Metropolitan Marine Maintenance Contractors' AssociationYes — reportedIN · May 22, 2026
- Metropolitan Marine Maintenance Contractors' AssociationYes — reportedVT · June 18, 2026
- Metropolitan Marine Maintenance Contractors' AssociationYes — reportedVermont · May 26, 2026
- Metropolitan Marine Maintenance Contractors' Association ("MMMCA")Yes — reportedMaine · May 25, 2026
- Metropolitan Marine Maintenance Contractors' Association ("MMMCA")Yes — reportedMaine · May 25, 2026
- Metropolitan Marine Maintenance Contractors' Association (MMMCA)Yes — reportedME · May 25, 2026
- MetroWest Community Federal Credit UnionYes — reportedIN · March 10, 2026
- MetroWest Community Federal Credit UnionYes — reportedIndiana · March 10, 2026
- Mfort Security Services PLLCYes — reportedIndiana · September 3, 2026
- MG Oil CompanyYes — reportedIndiana · July 27, 2026
- MGM Resorts InternationalYes — reportedMassachusetts · March 7, 2026
- mHubYes — reportedIN · March 23, 2026
- mHubYes — reportedIndiana · March 23, 2026
- Miami Management Inc.Yes — reportedNH · February 2, 2026
- Miami Management Inc.Yes — reportedNew Hampshire · February 2, 2026
- Michael J. Skagen CFPYes — reportedMassachusetts · August 3, 2026
- Michigan Chloride Sales, Realty, & Investment Group LLCYes — reportedIN · May 26, 2026
- Michigan Chloride Sales, Realty, & Investment Group LLCYes — reportedIndiana · May 26, 2026
- Michigan Sugar CompanyYes — reportedIN · January 30, 2026
- Michigan Sugar CompanyYes — reportedIndiana · January 30, 2026
- Michigan Surgical Center, LLC.Yes — reportedMassachusetts · July 17, 2026
- Microcode, Inc. (CommonSpirit Health)Yes — reportedWashington · July 30, 2026
- Microforum Services GroupYes — reportedNH · April 21, 2026
- Microforum Services GroupYes — reportedNew Hampshire · April 21, 2026
- Middlesex Federal Savings, F.A.Yes — reportedMassachusetts · March 19, 2026
- Midkiff, Muncie & Ross P.CYes — reportedIndiana · September 10, 2026
- Midkiff, Muncie & Ross, P.C.Yes — reportedVermont · September 10, 2026
- MIDLAND CARE CONNECTION INCYes — reportedIL · June 12, 2026
- MIDLAND CARE CONNECTION INCYes — reportedIllinois · June 12, 2026
- Midland Care Connections IncYes — reportedNebraska · June 29, 2026
- Midtown Community Health Center, Inc.Yes — reportedVermont · August 10, 2026
- Midvale Indemnity and American Family Connect Insurance CompanyYes — reportedIndiana · September 30, 2026
- Midvale Indemnity CompanyYes — reportedOregon · September 30, 2026
- Midvale Indemnity CompanyYes — reportedTexas · October 2, 2026
- Midway Industries IncYes — reportedIN · March 12, 2026
- Midway Industries IncYes — reportedIndiana · March 12, 2026
- MILE SQUARE HEALTH CENTERYes — reportedIllinois · April 2, 2026
- Miles Partnership LLLPYes — reportedIndiana · July 30, 2026
- Miles Partnership, LLLPYes — reportedVermont · July 31, 2026
- Milford Management Corp.Yes — reportedMassachusetts · January 20, 2026
- Mill Brothers Landscape GroupYes — reportedIN · March 31, 2026
- Mill Brothers Landscape GroupYes — reportedIndiana · March 31, 2026
- Millard Manufacturing CorpYes — reportedNebraska · April 17, 2026
- Millborn Seeds IncYes — reportedIN · May 6, 2026
- Millborn Seeds, Inc.Yes — reportedNH · May 11, 2026
- Millborn Seeds, Inc.Yes — reportedNew Hampshire · May 11, 2026
- Miller Insurance Protection TeamYes — reportedME · May 9, 2026
- Miller Insurance Protection TeamYes — reportedMaine · May 9, 2026
- Miller Insurance Protection TeamYes — reportedMaine · May 9, 2026
- Miller PipelineYes — reportedIN · April 2, 2026