[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f3i9s7nqrcsf3y":3},{"success":4,"breach":5},true,{"_id":6,"name":7,"title":8,"slug":9,"domain":10,"breachDate":11,"addedDate":12,"modifiedDate":13,"contentUpdatedAt":13,"source":14,"sourceUrl":15,"sourceUrls":16,"pwnCount":19,"affectedCount":19,"affectedCountStatus":20,"affectedCountLowerBound":21,"affectedCountUnit":22,"hasEnglishDescription":4,"severity":23,"dataClasses":24,"description":30,"seoTitle":31,"seoTitleEn":32,"seoDescription":31,"seoDescriptionEn":33,"logoUrl":34,"isVerified":4,"isSensitive":35,"isSpamList":35,"isMalware":35,"company":36},"6a6ffb93dbdad7181aa4f343","HarvardUniversity2025","Harvard University 2025 Data Breach","harvard-university-2025","harvard.edu","2025-11-18T00:00:00.000Z","2026-08-03T02:23:15.805Z","2026-08-03T02:26:42.168Z","Harvard University","https:\u002F\u002Fwww.huit.harvard.edu\u002Fcyberincident",[15,17,18],"https:\u002F\u002Ftechcrunch.com\u002F2026\u002F02\u002F04\u002Fhackers-publish-personal-information-stolen-during-harvard-upenn-data-breaches\u002F","https:\u002F\u002Fxposedornot.com\u002Fbreach\u002FHarvardUniversity",850784,"known",null,"email_identifiers","High",[25,26,27,28,29],"Email addresses","Names","Genders","Physical addresses","Phone numbers","\u003Cp>\u003Cstrong>The 2025 Harvard University data breach\u003C\u002Fstrong> involved unauthorized access to systems used by Alumni Affairs and Development. The subsequently published dataset contained 850,784 verified unique email addresses.\u003C\u002Fp>\u003Cp>Harvard said the incident affected information systems supporting fundraising and alumni engagement. Those systems held information about alumni, donors, some students, and some faculty and staff.\u003C\u002Fp>\u003Ch2>How was the incident confirmed?\u003C\u002Fh2>\u003Cp>Harvard University Information Technology disclosed the unauthorized access and the phone-based phishing method on its official incident page. The University said it removed the attacker’s access and worked with law enforcement and outside cybersecurity experts.\u003C\u002Fp>\u003Cp>An independent news organization later reviewed the published dataset and reported that its contents appeared to match the categories Harvard had disclosed. A separate verified breach entry corroborated the domain, November 2025 period, data types and unique-email count.\u003C\u002Fp>\u003Ch2>When did the breach occur?\u003C\u002Fh2>\u003Cp>Harvard discovered the unauthorized access on November 18, 2025. Its official information page was published on November 22 and the FAQ was updated as the investigation continued.\u003C\u002Fp>\u003Cp>The public notice does not state the first day the attacker entered the systems or how long access lasted. The February 2026 data publication was reported as a continuation of the same 2025 incident, not a separate Harvard breach.\u003C\u002Fp>\u003Ch2>What information was exposed?\u003C\u002Fh2>\u003Cp>The verified classes are email addresses, names, genders, physical addresses and phone numbers. Harvard’s notice also says the relevant systems held event-attendance, donation and other biographical information connected with alumni engagement.\u003C\u002Fp>\u003Cp>Harvard said these systems do not generally contain Social Security numbers, passwords, payment-card information or financial-account numbers. Those fields also do not appear in the verified dataset classes and are therefore not included in the catalog scope.\u003C\u002Fp>\u003Ch2>How many records were affected?\u003C\u002Fh2>\u003Cp>The verified figure is 850,784 unique email addresses in the published dataset. It is a count of email identities confirmed in that corpus, not an exact number of affected people announced by Harvard.\u003C\u002Fp>\u003Cp>Harvard did not disclose a definitive total of affected individuals. Higher raw-record figures reported elsewhere use a different measurement and were not added to the 850,784 figure.\u003C\u002Fp>\u003Ch2>What are the potential risks?\u003C\u002Fh2>\u003Cp>Names, addresses, phone numbers and email addresses combined with donor and alumni context can support targeted phishing, false donation requests and impersonation. Attackers may use details about a past Harvard relationship to make a message appear credible.\u003C\u002Fp>\u003Cp>Passwords were not confirmed as affected, but personalized email, phone or postal messages may be more convincing. Communications requesting account verification, a donation refund or an urgent transaction deserve particular caution.\u003C\u002Fp>\u003Ch2>What should affected people do?\u003C\u002Fh2>\u003Cp>Unexpected requests claiming to come from Harvard or a related organization should be verified through a known official channel without using links in the message. Do not give a caller a one-time code, password or financial information.\u003C\u002Fp>\u003Cp>Enable multi-factor authentication on email accounts, review unusual sessions and report suspicious messages. Donors and alumni should also watch for social-engineering attempts involving fake invoices, address changes or payment requests.\u003C\u002Fp>","","Harvard University Data Breach: 850,784 Emails","The Harvard University data breach exposed 850,784 unique email addresses. Review the timeline, verified data types and practical safety steps.","\u002Fuploads\u002Flogo\u002Fharvard-university-official.webp",false,{"name":14,"sector":37,"country":38,"website":10,"websiteArchiveUrl":31,"websiteStatus":39,"websiteCheckedAt":12},"Education","United States","active"]