Harvard University over the weekend disclosed a data breach impacting the personal information of alumni, donors, students, parents, staff, and other individuals. The incident was discovered on November 18 and involved unauthorized access to systems used by its Alumni Affairs and Development department, the higher-education institution said in a Saturday notice. Harvard said that it immediately blocked the attacker’s access to the impacted systems and that it launched an investigation in collaboration with third-party cybersecurity experts and law enforcement. “We are continuing to closely monitor and have no evidence of further unauthorized access,” the university said on Saturday. The potentially compromised information, Harvard said, includes data related to fundraising and alumni…