A researcher discovered that threat actors hijacked subdomains belonging to over 30 major universities. The attackers exploited this technique to impersonate legitimate institutional domains and gain credibility for malicious activities.
Subdomain hijackings work by taking control of web addresses that branch off from a university's main domain. Once seized, these fake subdomains appear legitimate to users and bypass security measures that trust the parent institution. Attackers use hijacked university subdomains to conduct phishing campaigns, distribute malware, and launch credential-stealing operations.
The practice targets universities specifically because their domains carry institutional weight and reputation. Users are more likely to trust communications appearing to originate from recognized schools. This makes subdomain hijacking particularly effective for social engineering attacks against students, faculty, and staff.
The researcher's findings reveal a widespread vulnerability across higher education. Universities often fail to monitor or secure all subdomains under their control, leaving gaps that attackers exploit. The discovery underscores the need for institutions to conduct comprehensive audits of their web infrastructure and implement stronger domain management practices.
The threat highlights how attackers weaponize trust in established institutions to execute fraud and data theft operations.