Harvard University data breach exposed info of 851,000 accounts
Hackers who breached Harvard University's Alumni Affairs and Development systems in November 2025 stole data linked to more than 850,000 unique email addresses, according to breach notification service Have I Been Pwned. [...]
What happened
Hackers who breached Harvard University's Alumni Affairs and Development systems in November 2025 stole data linked to more than 850,000 unique email addresses, according to breach notification service Have I Been Pwned. [...]
Why it matters
The incident may affect operational continuity, asset safety or trust around Security. Watch for verified scope and remediation.
Affected entities
View evidence
1 reports · 1 original report · 1 independent
- BleepingComputerPrimary source · Supports · EN · 100%Harvard University data breach exposed info of 851,000 accounts ↗
Claims
- Harvard University data breach exposed info of 851,000 accounts Observed
Conflicts
No material conflict detected in the available evidence.
Timeline
- First reported
Market move following event
Market reaction is not yet available for this asset and time window.
Score explanation
Confidence · formula confidence-2.1.0
Source trust84
Independent corroboration51
Primary evidence35
Claim consistency82
Extraction confidence82
Attribution quality90
Impact · formula impact-2.1.0
Event magnitude96
Market relevance74
Entity significance42
Market breadth45
Novelty68
Urgency96
Ranking · formula rank-1.0.0
Confidence factor0.847
Freshness factor0.9998
Breaking bonus8