According to the hacker, their group gained full access to a Penn employee’s PennKey single sign-on (SSO) credentials, allowing them to infiltrate critical systems such as the university’s VPN, Salesforce Marketing Cloud, SAP business intelligence platform, SharePoint, and Qlik analytics. The attackers claim to have exfiltrated sensitive personal data, including names, contact information, birth dates, estimated net worth, donation records, and demographic details such as religion, race, and sexual orientation. Screenshots and data samples shared with cybersecurity publication BleepingComputer appeared to confirm the hackers’ access to these systems.
The hacker stated that the breach began on October 30th and that data extraction was completed by October 31st, after which the compromised credentials were revoked. In retaliation, the group allegedly used remaining access to the Salesforce Marketing Cloud to send the offensive emails to roughly 700,000 recipients. When asked about the method used to obtain the credentials, the hacker declined to specify but attributed the breach to weak security practices at the university.
Following the intrusion, the hacker reportedly published a 1.7 GB archive containing spreadsheets, donor-related materials, and files allegedly sourced from Penn’s SharePoint and Box systems.
The attacker told BleepingComputer that their motive was not political but financial, driven primarily by access to the university’s donor database. “We’re not politically motivated,” the hacker said. “The main goal was their vast, wonderfully wealthy donor database.” They added that they were not seeking ransom, claiming, “We don’t think they’d pay, and we can extract plenty of value out of the data ourselves.”
Although the full donor database has not yet been released, the hacker warned it could be leaked in the coming months.
In response, the University of Pennsylvania stated that it is investigating the incident and has referred the matter to the FBI. “We understand and share our community’s concerns and have reported this to the FBI,” a Penn spokesperson confirmed. “We are working with law enforcement as well as third-party technical experts to address this as rapidly as possible.”
Experts warn that donors and affiliates affected by the breach should remain alert to potential phishing attempts and impersonation scams.
With detailed personal and financial data now at risk, attackers could exploit the information to send fraudulent donation requests or gain access to victims’ online accounts. Recipients of any suspicious communications related to donations or university correspondence are advised to verify messages directly with Penn before responding.
The University of Pennsylvania breach highlights the growing risks faced by educational institutions holding vast amounts of personal and donor data, emphasizing the urgent need for robust access controls and system monitoring to prevent future compromises.
