In the early hours of December 18, 2025, Australia’s University of Sydney disclosed a significant cybersecurity breach, revealing that hackers had infiltrated an online coding repository and siphoned off personal data belonging to thousands of staff, students, alumni, and donors. The incident, which the university described as involving ‘historic data,’ has thrust one of the nation’s premier academic institutions into the spotlight amid rising cyber threats to educational sectors worldwide.
The breach targeted a GitLab instance hosted by the university, where attackers accessed and exfiltrated files containing sensitive information such as names, email addresses, phone numbers, and in some cases, financial details from donors. BleepingComputer reported that the hackers stole data on over 13,000 individuals, marking this as one of the largest academic data exposures in recent Australian history.
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