Date of this Version
Micah Sherr, Eric Cronin, Sandy Clark, and Matthew A. Blaze, "Signaling Vulnerabilities in Wiretapping Systems", . November 2005.
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.
Date Posted: 03 March 2006
This document has been peer reviewed.