Sherr, Micah, Eric Cronin, Sandy Clark, and Matt Blaze. “Signaling Vulnerabilities in Wiretapping Systems.” IEEE Security & Privacy 3, no. 6 (November 2005): 13–25.

@article{wiretapping,
  author = {Sherr, Micah and Cronin, Eric and Clark, Sandy and Blaze, Matt},
  journal = {IEEE Security \& Privacy},
  month = nov,
  number = {6},
  pages = {13--25},
  title = {{Signaling Vulnerabilities in Wiretapping Systems}},
  volume = {3},
  year = {2005}
}