Dartmouth College confirms data breach after Clop extortion attack

​Dartmouth College has disclosed a data breach after the Clop extortion gang leaked data allegedly stolen from the school's Oracle E-Business Suite servers on its dark web leak site. The private Ivy League research university, founded in 1769, has an endowment of $9 billion as of June 30, 2025, over 40 academic departments and programs, and more than 4,000 undergraduate students, with a 7:1 undergraduate-to-faculty ratio. In a breach notification letter filed with the office of Maine's Attorney General, Dartmouth says the attackers exploited an Oracle E-Business Suite (EBS) zero-day vulnerability to steal personal information belonging to 1,494 individuals. However, the total number of people potentially impacted by this data breach is likely much larger, given that the school is headquartered in Hanover, New Hampshire, and it hasn't yet filed a breach notice with the state's Attorney General. "Through the investigation, we determined that an unauthorized actor took certain files between August 9, 2025, and August 12, 2025. We reviewed the files and on October 30, 2025, identified one or more that contained your name and Social Security number," the college says in letters mailed to those affected by the data leak. In a separate appendix filed with Maine's AG, Dartmouth added that the threat actors also stole documents containing the financial account information of impacted individuals. A Dartmouth College spokesperson was not immediately available for comment when contacte...