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BreakSPF: How Shared Infrastructures Magnify SPF Vulnerabilities Across the Internet

This work proposes a BreakSPF attack framework, a newly discovered method for attackers to bypass the SPF protocol and launch email spoofing attacks.

Chuhan Wang, Yasuhiro Kuranaga, Yihang Wang, Mingming Zhang, Linkai Zheng, Xiang Li, Jianjun Chen, Haixin Duan, Yanzhong Lin, Qingfeng Pan