This presentation was done in August 2016 at DEF CON 24.

MasterChen highlights his work on turning vertical service codes, or feature codes (such as *69), into digital weaponry on the phone system.

Associated code on GitHub

NOTE: This article first appeared in the Autumn 2013 edition of 2600: The Hacker Quarterly. It has been placed here, only edited for formatting purposes, to keep a catalog of the author's work.

Asterisk: The Busy Box

by

MasterChen infoinject[at]gmail[dot]com