System and method for preventing fraud upon PBX through a remote maintenance or administration port

A system for preventing the fraudulent use of a computer data system dial-up remote login facility, comprising:

• a device for passively monitoring calling activity conducted through the dial-up remote login facility of the computer data system after call set-up has been completed between any remote end user of the computer data system and the computer data system;
• a modem means for routing calling activity data to said device for passively monitoring without interfering with information transmission to and from said computer data system;
• said device capable of distinguishing between authorized and unauthorized calling activity of any remote end user of the computer data system by comparing the monitored calling activity data with a set of conditions governing authorized and unauthorized uses of the computer data system;
• and
• means for disconnecting an unauthorized call from the computer data system.

A method for preventing the unauthorized use of a computer data system dial-up remote login facility comprising the steps of:

• a. passively monitoring calling activity data occurring through the dial-up remote login facility after call set-up has been completed between any remote end user of tile computer data system and the computer data system;
• b. analyzing said monitored calling activity data for conditions indicative of an unauthorized use by any remote end user of the computer data system by comparing said monitored calling activity data against a set of conditions governing both authorized and unauthorized uses of the computer data system;
• and
• c. disconnecting a call from the computer data system when said monitored calling activity data matches the set of unauthorized use conditions.

A method of preventing the unauthorized use of a computer data system dial-up remote login facility comprising the steps of:

• a. routing calling activity data occurring after call set-up has been completed between any remote end user of the computer data system and the computer data system through a port of the dial-up remote login facility without interfering with calling activity of the computer data system to a device for analyzing the monitored data;
• b. analyzing said routed calling activity data with a rule based expert system to identify calling conditions indicative of fraud by comparing said routed calling activity data against a set of conditions governing both authorized and unauthorized uses of the computer data system;
• and
• c. disconnecting the call from the computer data system when said routed calling activity data matches the set of unauthorized use conditions.

A system for preventing fraudulent use of a Private Branch Exchange (PBX) remote maintenance or administration port, comprising:

• means for passively monitoring calling activity of any remote end user of the PBX conducted through the remote maintenance or administration port of the PBX after call set-up has been completed between said end user and the PBX;
• means for distinguishing between authorized and unauthorized calling activity between any remote end user and the PBX remote maintenance or administration port by comparing the monitored calling activity data with a set of conditions governing authorized and unauthorized uses of the PBX;
• and
• means for disconnecting a call from the PBX remote maintenance or administration port upon the detection of said unauthorized calling activity.

A system for preventing the fraudulent use of a Private Branch Exchange (PBX) remote maintenance or administration port, comprising:

• a device for passively monitoring calling activity of any remote end user of the PBX conducted through the remote maintenance or administration port of the PBX after call set-up has been completed between said end user and the PBX;
• a modem means for routing calling activity data to said device for passively monitoring without interfering with information transmission to and from said PBX;
• said device capable of distinguishing between authorized and unauthorized calling activity of any remote end user of the PBX remote maintenance or administration port by comparing the monitored calling activity data with a set of conditions governing authorized and unauthorized uses of the PBX remote maintenance or administration port;
• and
• means for disconnecting an unauthorized call from the PBX remote maintenance or administration port.

A system for preventing the fraudulent use of a Private Branch Exchange (PBX) remote maintenance or administration port, comprising:

• a device for passively monitoring calling activity conducted through the maintenance or administration port after call set-up has been completed between any remote end user of the PBX and said PBX;
• a modem means for routing calling activity data to said monitoring device without interfering with information transmission to and from said PBX;
• said device for passively monitoring including a user-defined database of conditions indicative of authorized and unauthorized calling activity data between the end user and the PBX remote maintenance or administration port;
• means for comparing said routed calling activity data against said database of authorized and unauthorized conditions;
• and
• means responsive to said comparing means for disconnecting an unauthorized call.

A method for preventing the unauthorized use of a Private Branch Exchange (PBX) remote maintenance or administration port comprising the steps of:

• a. passively monitoring calling activity data occurring through the maintenance or administration port after call set-up has been completed between any remote end user and said PBX remote maintenance or administration port;
• b. analyzing said monitored calling activity data for conditions indicative of an unauthorized use by any remote end user of the PBX remote maintenance or administration port by comparing said monitored calling activity data against a set of conditions governing both authorized and unauthorized uses of the PBX remote maintenance or administration port;
• and
• c. disconnecting a call from the PBX remote maintenance or administration port when said monitored calling activity data matches the set of unauthorized use conditions.

A method of preventing the unauthorized use of a Private Branch Exchange (PBX) remote maintenance or administration port comprising the steps of:

• a. routing calling activity data occurring after call set-up has been completed between any remote end user and said PBX remote maintenance or administration port through the maintenance or administration port without interfering with calling activity of the PBX to a device for analyzing the monitored data;
• b. providing a user-defined set of rules governing conditions indicative of authorized and unauthorized uses of the PBX remote maintenance or administration port;
• c. comparing said monitored calling activity data against said set of rules of PBX use;
• d. determining whether said monitored calling activity data is an authorized condition under said rules of PBX use;
• and
• e. disconnecting the call from the PBX remote maintenance or administration port if said monitored calling activity data is determined to be an unauthorized condition under said rules of PBX usage.