I know what you did last login: inconsistent messages tell existence of a target's account to insiders

Ayako Akiyama Hasegawa, Takuya Watanabe 0001, Eitaro Shioji, Mitsuaki Akiyama. I know what you did last login: inconsistent messages tell existence of a target's account to insiders. In David Balenson, editor, Proceedings of the 35th Annual Computer Security Applications Conference, ACSAC 2019, San Juan, PR, USA, December 09-13, 2019. pages 732-746, ACM, 2019. [doi]

@inproceedings{Hasegawa0SA19,
  title = {I know what you did last login: inconsistent messages tell existence of a target's account to insiders},
  author = {Ayako Akiyama Hasegawa and Takuya Watanabe 0001 and Eitaro Shioji and Mitsuaki Akiyama},
  year = {2019},
  doi = {10.1145/3359789.3359832},
  url = {https://doi.org/10.1145/3359789.3359832},
  researchr = {https://researchr.org/publication/Hasegawa0SA19},
  cites = {0},
  citedby = {0},
  pages = {732-746},
  booktitle = {Proceedings of the 35th Annual Computer Security Applications Conference, ACSAC 2019, San Juan, PR, USA, December 09-13, 2019},
  editor = {David Balenson},
  publisher = {ACM},
  isbn = {978-1-4503-7628-0},
}