Pit Bull (program)

Pit Bull is Detection/Alarm program most advanced form of the Watchdog series, Pit Bull not only tracks the intruder to its source, but also cuts the line after acquiring the location. It will continue to cut the line every time the intruder logs on from that point of entry, requiring him to move to another phone line or cybermodem. Like Watchdog, Pit Bull can be set up to watch a part of the Net and report back to you at another workstation or modem.

Source

 * Cyberpunk 2020, pg.138, 142