FakeBehalf: Imperceptible Email Spoofing Attacks against the Delegation Mechanism in Email Systems. - Jinrui Ma; Lutong Chen; Kaiping Xue; Bo Luo; Xuanbo Huang; Mingrui Ai; Huanjie Zhang; David S. L. Wei; Yan Zhuang (USENIX Security Symposium, 2024)