Harvard data breach exposes 851,000 accounts in alumni systems

Hackers breached Harvard University's Alumni Affairs and Development systems in November 2025, stealing data linked to over 850,000 unique email addresses, as reported by Have I Been Pwned. The breach affects a large number of alumni and donors, potentially exposing personal information. This incident underscores ongoing cybersecurity vulnerabilities in educational institutions and may lead to targeted phishing or identity theft.

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