The University of Pennsylvania said Tuesday it is confident that a data breach attack in which hackers allege they accessed large volumes of personal donor, student, and alumni information has been “contained” and the school has hired cybersecurity professionals to help investigate. While it’s been reported that hackers allege accessing data on 1.2 million students, donors, and alumni, Penn said it could not confirm that number and is still investigating the material that was accessed. “However, we do know that the stolen credentials were used to access systems related to Penn’s development and alumni activities,” the university said on an...