ShinyHunters Leaks Donor and Alumni Data Stolen from Harvard and UPenn
ShinyHunters published datasets it claims were stolen during prior breaches at Harvard University and the University of Pennsylvania (UPenn), posting what it says are over one million records from each university to its leak site used for extortion. Reporting indicates the exposed information relates to the schools’ development/alumni functions; TechCrunch said it verified portions of the data by corroborating details with alumni and public records (including matching against student ID numbers).
Both universities attributed the intrusions to social engineering targeting staff supporting alumni and fundraising operations. UPenn previously confirmed unauthorized access to “a select group” of systems tied to development and alumni activities and said attackers also used official university email addresses to message alumni about the incident. Harvard reported its Alumni Affairs and Development environment was accessed following a phone/voice-phishing attack, and its incident FAQ described impacted data as including contact details (email, phone, home/business addresses), event attendance, donation details, and other biographical and fundraising-related information; public reporting noted uncertainty about whether affected individuals would receive individual notifications under applicable state requirements.

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How this story unfolded
5 events from the most recent confirmed update back to the earliest known activity.
UPenn says it is analyzing leaked data for notification obligations
After the data was published, UPenn said it was reviewing the leaked information and would notify affected individuals if required by privacy regulations. Harvard did not comment on the new publication.
ShinyHunters publishes Harvard and UPenn datasets
On February 4, 2026, ShinyHunters published datasets it claimed were stolen from Harvard and UPenn, posting more than one million records from each university on its leak site. The group said it released the data after the universities refused to pay or negotiate.
Harvard discovers vishing attack on alumni systems
On November 18, 2025, Harvard discovered that its Alumni Affairs and Development systems had been compromised through a phone-based phishing, or vishing, attack. The stolen data included contact details, addresses, event attendance, donation details, and other biographical and fundraising engagement information.
UPenn publicly announces the breach
On November 11, 2025, UPenn publicly disclosed the incident. The university said the attack affected alumni and donor-related systems, while attackers allegedly exfiltrated about 1.2 million records including demographic data and estimated net worth.
UPenn confirms breach affecting alumni and development systems
At the end of October 2025, the University of Pennsylvania confirmed a breach involving systems tied to development and alumni activities. The intrusion was attributed to social engineering, and reporting linked the incident to ShinyHunters using a compromised PennKey SSO account to access internal platforms.
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Sources
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ShinyHunters exposes Harvard, UPenn data | SC Media
scworld.com
Open sourceTwo Ivy League universities had donor information breaches. Will donors be notified? - DataBreaches.Net
databreaches.net
Open sourceHackers publish personal information stolen during Harvard, UPenn data breaches | TechCrunch
techcrunch.com
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