Supply-chain cascades

One breach at a service provider can surface as dozens of separate breach notifications, each filed by a different client organization. These are the cascades we have reviewed and confirmed: the vendor named in the filings, and every downstream victim that filed about it.

• Mercadien, P.C.20263 organizations linked
• Instructure, Inc.20264 organizations linked
• Doctor Alliance20264 organizations linked
• Marquis Software Solutions, Inc.2025–20263 organizations linked
• TriZetto Provider Solutions2025–202621 organizations linked
• ORACLE CORPORATION2025–20267 organizations linked
• CONDUENT BUSINESS SERVICES, LLC2025–20263 organizations linked
• SALESLOFT, INC.2025–20263 organizations linked
• Nationwide Recovery Services, Inc.2025–202611 organizations linked
• Cleo20252 organizations linked
• Billing Document Specialists20253 organizations linked
• Carruth Compliance Consulting202559 organizations linked
• PowerSchool202559 organizations linked
• CDK GLOBAL II LLC20248 organizations linked
• CENCORA, INC.20248 organizations linked
• Athletic Trainer System20243 organizations linked
• INFOSYS MCCAMISH SYSTEMS, LLC202419 organizations linked
• Paycor2023–202416 organizations linked
• HealthEC LLC2023–20243 organizations linked
• SignatureIT Ltd.20237 organizations linked
• Welltok2023–20248 organizations linked
• FISERV, INC.2023–20249 organizations linked
• Darling Consulting Group2023–20246 organizations linked
• Pension Benefit Information, LLC202327 organizations linked
• CommerceV32023–202431 organizations linked
• Progress Software Corporation2023–202493 organizations linked
• FORTRA, LLC202310 organizations linked
• Overby-Seawell Company20223 organizations linked
• R. R. DONNELLEY & SONS COMPANY20223 organizations linked
• Eye Care Leaders20226 organizations linked
• FreeStyle Solutions2022–202312 organizations linked
• OneDigital Investment Advisors LLC2021–20223 organizations linked
• Elekta20213 organizations linked
• Accellion202112 organizations linked
• Avianis20214 organizations linked
• Netgain Networks2021–202215 organizations linked
• BLACKBAUD, INC.2020–2021172 organizations linked
• Aeries202019 organizations linked
• PaperlessPay Corporation202013 organizations linked
• National Imaging Associates, Inc.2019–20203 organizations linked
• Retrieval Masters Creditors Bureau, Inc.201918 organizations linked
• PrismRBS20195 organizations linked
• Sharecare Health Data Services, LLC20194 organizations linked
• AccuDoc Solutions, Inc.20183 organizations linked
• Shopper Approved, LLC20183 organizations linked
• JobScience2018–20197 organizations linked
• Social Annex, Inc.20184 organizations linked
• [24]7.ai20184 organizations linked
• Orbitz Worldwide, LLC20186 organizations linked
• CoPilot Provider Support Services2017–20184 organizations linked
• Aptos201712 organizations linked
• Aptos20174 organizations linked
• Ambucor Health Solutions20163 organizations linked
• Rehab Billing Solutions20163 organizations linked
• Marin Medical Practice Concepts, Inc.20164 organizations linked
• Comnet Marketing Group20164 organizations linked
• Bizmatics201610 organizations linked
• Missing Link Network201522 organizations linked
• ANTHEM INSURANCE COMPANIES, INC.201512 organizations linked
• Automatic Data Processing, Inc.20143 organizations linked
• Assurecare Risk Management, Inc.20113 organizations linked
• Colt Express Outsourcing Services, Inc.20087 organizations linked

A cascade records that each listed organization filed a breach notification naming the same third party. It does not assert that the vendor was negligent or that it caused each breach.