Home › Data types › Social Security numberSocial Security number A US Social Security number.
4,277 confirmed incidents on file list Social Security number among the data involved.
If your Social Security number was included A Social Security number cannot be changed in most circumstances, so a credit freeze and ongoing monitoring (see above) are the main practical defences rather than replacement. Watch for an unexpected IRS notice about a tax return you did not file — this can be a sign of tax-related identity theft. The IRS offers an Identity Protection PIN you can opt into for extra protection. Be alert to mail or benefits notices for accounts or claims you did not open. Top sectors Sector Confirmed incidents Unclassified 3,942 Healthcare 218 Technology 28 Manufacturing 16 Retail 12 Professional Services 11 Finance 9 Pharma 8 Insurance 7 Hospitality 6 Real Estate 6 Energy 6 Telecoms 4 Media 2 Transport 1 Education 1
Most recent incidents Organization Disclosed Jurisdiction Records affected Frontline Education October 27, 2026 US-VT — Chisholm, Persson & Ball, P.C. October 26, 2026 US-VT — Monmouth University October 26, 2026 US-VT — Northeastern Mental Health Center October 24, 2026 US-VT — Ritchie County Primary Care Association d/b/a Integrated Health Centers of West Viginia October 23, 2026 US-VT — RL Schreiber, Inc. October 23, 2026 US-VT — Ford Audio-Video Systems, LLC October 23, 2026 US-VT — EyeMed Vision Care LLC October 23, 2026 US-VT — Alabama Fire College October 23, 2026 US-VT — Region 9 Education Service Center October 23, 2026 US-TX 259 East Chambers Independent School District (Breach was through Frontline Education) October 23, 2026 US-TX 801 Motility Software Solutions October 23, 2026 US-TX 767,562 Sherman Independent School District October 23, 2026 US-TX 8,493 Opportune LLP October 22, 2026 US-VT — Dill Dill Carr Stonbraker & Hutchings, P.C. October 22, 2026 US-CA 33,613 Summit School District October 22, 2026 US-VT — Deposition Solutions, LLC (d/b/a Lexitas) October 22, 2026 US-CA — Ohio Living October 21, 2026 US-VT — Michael J. Berger and Co., CPA LLP October 21, 2026 US-VT — CSX October 20, 2026 US-NH — Chevy Chase Club October 20, 2026 US-VT — Hardi Jefferson ISD October 20, 2026 US-TX 426 Toyo Tire Holdings of Americas Inc. October 20, 2026 US-TX 17,707 Computer Task Group, Incorporated October 20, 2026 US-TX 11,962 Heritage Pediatrics PLLC October 20, 2026 US-TX 3,318 WireCo WorldGroup October 19, 2026 US-MA — Computer Task Group, Incorporated October 19, 2026 US-VT — Citizens Bank October 19, 2026 US-CA 1,260,000 Settlement Health and Medical October 17, 2026 US-MA — Frazer LLP October 17, 2026 US-MA — Catawba County October 17, 2026 US-VT — Compliance Audit Partners LLC October 16, 2026 US-MA — MLD Mortgage Inc. dba The Money Store October 16, 2026 US-MA — Mankato Clinic October 16, 2026 US-NH — ProAmpac Holdings Inc. October 16, 2026 US-NH — American Piping & Boiler Co October 16, 2026 US-NH — BBC International LLC October 16, 2026 US-VT — Covered California October 16, 2026 US-CA — Johnson Investment Counsel October 16, 2026 US-VT — Delek US Energy, Inc. October 16, 2026 US-TX 2,566 The Krum Public Library October 16, 2026 US-TX 36,360 Mountrail County Medical Center October 16, 2026 US-TX 24,447 Klein Independent School District October 16, 2026 US-TX 37,966 Encore Enterprises October 16, 2026 US-TX 4,488 JM Bullion, Inc. October 16, 2026 US-TX 78,451 City of Attleboro October 15, 2026 US-MA — emc CPAs LLC October 15, 2026 US-MA — fairlife, LLC October 15, 2026 US-VT — Law Office of Barbara L Horan October 15, 2026 US-MA — MLD Mortgage Inc. dba The Money Store October 15, 2026 US-CA 45,561
Questions and answers How many confirmed incidents involve Social Security number? 4,277 confirmed incidents on Breach Census list Social Security number among the data involved.
What is this data type? A US Social Security number.
What should I do if my Social Security number was involved in a breach? General next steps for this data type are listed above, on this page.