Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

Dartmouth College

Disclosed Nov 24, 202598,990 affectedConfirmed

Official notice

Clop Oracle EBS attack exposes SSNs of 1,494 Dartmouth individuals

Dartmouth told Maine's attorney general that attackers exploited the Oracle E-Business Suite zero-day to steal files containing names, SSNs and financial account information of 1,494 people.

What is known

People affected98,990 (as reported by the organization)
DisclosedNov 24, 2025
DiscoveredAug 12, 2025
HappenedAug 9, 2025
AttackSupply chain
Data exposedNamesSocial Security numbersFinancialPayment cards
SectorEducation · US
StatusConfirmed
Part ofOracle ebs (2025)

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: Dartmouth College
Official noticeatg.wa.gov
Washington Attorney General breach notice: Dartmouth College
Official noticejustice.oregon.gov
Oregon DOJ breach notice: Dartmouth College
Newsbleepingcomputer.com
Dartmouth College confirms data breach after Clop extortion attack
Official noticeoag.my.site.com
Texas Attorney General data security breach report BR-0004692: Dartmouth College
Official noticeago.vermont.gov
Vermont Attorney General: 2025-11-24 Dartmouth College Data Breach Notice to Consumers
Official noticein.gov
Indiana Attorney General 2025 data breach report: Dartmouth College

Notices filed

Residents of CANov 24, 2025
California AGCount not stated
Residents of WANov 24, 2025
Washington AG1,496 people
Residents of ORNov 24, 2025
Oregon DOJ98,990 people
Residents of VTNov 24, 2025
Vermont AGCount not stated
Residents of INNov 24, 2025
Indiana AG413 people
TotalNov 25, 2025
Research1,494 people
Residents of TXNov 25, 2025
Texas AG1,956 people

Same campaign

The Estée Lauder CompaniesEstee Lauder notifies employees of HR data theft via Oracle EBS flawHackingRetailUSUnverifiedJul 20Barts Health NHS TrustClop steals Barts Health invoices via Oracle EBS zero-daySupply chainHealthcareGBUnverifiedDec 5, 2025University of PhoenixClop Oracle EBS hack exposes 3.5M University of Phoenix recordsSupply chain3.5M affectedEducationUSDec 2, 2025Cox EnterprisesOracle EBS zero-day breach exposes 9,479 Cox Enterprises peopleSupply chain9,479 affectedMediaUSNov 20, 2025LogitechSupply chain exposed internal documents.Supply chainTechCHNov 14, 2025Washington PostOracle EBS hack exposes Washington Post staff bank and SSN dataSupply chain9,720 affectedMediaUSNov 7, 2025GlobalLogicOracle EBS zero-day breach exposes 10,471 GlobalLogic employeesSupply chain10K affectedTechUSNov 7, 2025Envoy AirClop steals business data from American Airlines' Envoy via Oracle EBSSupply chainTransportUSUnverifiedOct 17, 2025Harvard UniversityHarvard alumni and donor data stolen in Oracle EBS and phishing attacksHacking851K accountsEducationUSOct 13, 2025OracleClop exploits Oracle E-Business Suite zero-day to steal data from dozensSupply chainTechUSOct 2, 2025
History of this record
source2026-09-25
empty to https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/files/DB-Year-to-Date-Report-2025.pdfby backfillSource
source2026-09-25
empty to https://ago.vermont.gov/document/2025-11-24-dartmouth-college-data-breach-notice-consumersby backfillSource
data_types2026-09-25
["names","ssn","financial"] to ["names","ssn","financial","payment-card"]by backfillSource
records2026-09-25
1494 to 98990by backfillSource
campaign2026-09-25
empty to oracle-ebs-2025by seedSource
attack2026-09-25
hacking to supply-chainby seedSource
data_types2026-09-25
[] to ["names","ssn","financial"]by seedSource
records_basis2026-09-25
empty to organizationby seedSource
records2026-09-25
empty to 1494by seedSource
summary2026-09-25
empty to Dartmouth told Maine's attorney general that attackers exploited the Oracle E-Business Suite zero-day to steal files containing names, SSNs and financial account information of 1,494 people.by seedSource
title2026-09-25
empty to Clop Oracle EBS attack exposes SSNs of 1,494 Dartmouth individualsby seedSource
attack2026-09-25
unknown to hackingby backfillSource
discovered2026-09-25
empty to 2025-08-12by backfillSource
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.

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