Signaling Vulnerabilities in Wiretapping Systems

  • Authors:
  • Micah Sherr;Eric Cronin;Sandy Clark;Matt Blaze

  • Affiliations:
  • University of Pennsylvania;University of Pennsylvania;University of Pennsylvania;University of Pennsylvania

  • Venue:
  • IEEE Security and Privacy
  • Year:
  • 2005

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Abstract

Many law enforcement wiretap systems are vulnerable to simple, unilateral countermeasures that exploit the unprotected in-band signals passed between the telephone network and the collection system. This article describes the problem as well as some remedies and workarounds.