Princeton University experienced a data breach that compromised information from its Advancement database. Hackers accessed names, addresses, email addresses, and phone numbers of alumni, donors, faculty, students, and parents. The breach likely affected all alumni, including those who didn't graduate, as well as spouses, partners, and faculty and staff who have made donations. No sensitive data like Social Security numbers or financial information was involved. The breach resulted from a phone phishing attack on an employee with access to the database. Princeton quickly evicted the hacker within 24 hours but hasn't yet been able to assess the full scope of the information accessed. The university is investigating the incident with outside experts and law enforcement. It plans to notify all affected individuals whose email addresses were stored in the database. Meanwhile, Princeton is advising caution against unusual communications that appear to come from the university, warning of potential phishing attempts in the wake of the breach.