BT is aiming to prevent further metal theft across its copper broadband networks by using burglar alarm technology.
The broadband provider is deploying Rapid Assessment BT Incident Tracker technology (RABIT), which monitors the network and informs the firm if a cable is cut.
With the value of copper so high, BT is losing millions each year to cable theft.
During a trial of the RABIT solution, conducted in Essex last year, an attempt to steal copper from BT's network was foiled by the alarm system.
Luke Beeson, General Manager of BT Security, said the launch of a new burglar alarm on the network should make thieves think again.
"We are now able to inform the police of the exact location of malicious network attacks and, if trials are anything to go by, it won't be long before they start catching the thieves in the act," he stated.
Paul Crowther, Deputy Chief Constable of the British Transport Police, suggested the solution will significantly improve response times to cable theft incidents.
This should act as a "major deterrent" to criminals engaged in this activity, he stated.