Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

Harvard University

Disclosed Oct 13, 2025850,537 accountsConfirmed

Official notice

Harvard alumni and donor data stolen in Oracle EBS and phishing attacks

Harvard said data from a small administrative unit was taken via the Oracle E-Business Suite zero-day after Clop listed it, and in November disclosed a separate breach of alumni and donor systems exposing contact details, event attendance and donation data, but no SSNs or payment data.

What is known

People affected850,537 (accounts in the leaked data, per Have I Been Pwned)
DisclosedOct 13, 2025
HappenedNov 18, 2025
AttackHacking
Data exposedNamesEmailsPhone numbersAddressesFinancialOtherDates of birthEducation recordsEmployment
SectorEducation · US
StatusConfirmed
Part ofOracle ebs (2025)
Check your emailHave I Been Pwned

Sources

Newsbleepingcomputer.com
Harvard investigating breach linked to Oracle zero-day exploit
Newsbleepingcomputer.com
Harvard University discloses data breach affecting alumni, donors
Aggregatorhaveibeenpwned.com
Have I Been Pwned: Harvard
The organizationhuit.harvard.edu
Harvard disclosure

Notices filed

TotalOct 13, 2025
ResearchCount not stated
Accounts in the dataNov 3
Have I Been Pwned850,537 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, 2025Dartmouth CollegeClop Oracle EBS attack exposes SSNs of 1,494 Dartmouth individualsSupply chain99K affectedEducationUSNov 24, 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, 2025OracleClop exploits Oracle E-Business Suite zero-day to steal data from dozensSupply chainTechUSOct 2, 2025

Other breaches at Harvard University

Harvard University data breach exposed info of 851,000 accountsHarvard University data breach exposed info of 851,000 accountsHacking851K affectedEducationUSUnverifiedNov 3
History of this record
status2026-11-04
disclosed to confirmedby dailySource
verified_by2026-11-04
empty to companyby dailySource
verified2026-11-04
0 to 1by dailySource
hibp2026-11-04
empty to Harvardby dailySource
data_types2026-11-04
["names","emails","phone","addresses","financial","other"] to ["names","emails","phone","addresses","financial","other","dob","education","employment"]by dailySource
records_basis2026-11-04
empty to hibpby dailySource
records2026-11-04
empty to 850537by dailySource
occurred2026-11-04
empty to 2025-11-18by dailySource
Added2026-09-25
First recordedby seedSource

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

Everything about Harvard University