BreachRecord

Data breaches in November 2026

Data breaches first reported to a state attorney general, HHS or the SEC in November 2026: 17 breaches. Facts come from official filings with US state attorneys general, the U.S. Department of Health and Human Services (HHS) and the SEC; each breach page links its sources.

Updated Nov 7, 2026 · Showing 1–17 of 17

Organization First filed People affected Information exposed Filed with
Insight Credit UnionInsight Credit Union breach history 67,487
  • Social Security number
  • Driver's license
  • Government ID number
  • +2 more
 Texas AG
Fisher59, LLCFisher59, LLC breach history 1,065
  • Social Security number
  • Health insurance information
  • Name
  • +1 more
 Texas AG
Amplifon (USA), Inc.Amplifon , Inc. breach history 1,332,826
  • Social Security number
  • Medical information
  • Driver's license
  • +6 more
 Texas AG
HTH Companies, Inc.HTH Companies, Inc. breach history 694
  • Social Security number
  • Medical information
  • Driver's license
  • +4 more
 Texas AG
Park Dental Partners, Inc.Park Dental Partners, Inc. breach history 1,276,335
  • Medical information
  • Health insurance information
  • Date of birth
  • +1 more
 Texas AG
UFP Technologies Inc.UFP TECHNOLOGIES INC breach history 10,802
  • Social Security number
  • Medical information
  • Driver's license
  • +4 more
 Texas AG
Hoag Memorial Hospital PresbyterianHoag Memorial Hospital Presbyterian breach history Not stated
  • Name
 California AG
Yu Ming Charter SchoolYu Ming Charter School breach history Not stated Not stated California AG
RevSpring, Inc.RevSpring, Inc. breach history 1,974,069
  • Social Security number
  • Date of birth
  • Name
  • +4 more
 California AG, Texas AG
Peninsula Corridor Joint Powers Board (Caltrain)Peninsula Corridor Joint Powers Board breach history Not stated Not stated California AG
Center Theatre Group of Los AngelesCenter Theatre Group of Los Angeles breach history Not stated
  • Social Security number
  • Name
 California AG
Upland Unified School DistrictUpland Unified School District breach history Not stated Not stated California AG
Mavis Tire Supply LLCMavis Tire Supply LLC breach history 71,774
  • Social Security number
  • Medical information
  • Driver's license
  • +3 more
 Texas AG
Apex Clean Energy Holdings, LLCApex Clean Energy Holdings, LLC breach history 13,763
  • Social Security number
  • Medical information
  • Driver's license
  • +4 more
 Texas AG
Fidelity Enrollment Services LLCFidelity Enrollment Services LLC breach history 5,680
  • Social Security number
  • Name
 Texas AG
Cotton IncorporatedCotton Incorporated breach history Not stated
  • Email address and password
  • Name
  • Address
  • +2 more
 California AG
DreamHost, LLCDreamHost, LLC breach history Not stated
  • Username and password
  • Other information
 California AG

Other months in 2026

People affected is the official total from a filing, or “At least” the sum of state filings where no total was filed. Spotted an error? Report a correction.