Internet users worried about security breaches are so preoccupied with enforcing the front gate that many inadvertently leave the backdoor ajar to be exploited by hackers.

The problem has become so serious that London-based Internet security tester NTA Monitor Ltd (www.nta-monitor.com) is pleading with users, especially those in the corporate sector, to go back to basics by reverting to "war dialling."

War dialling is the process of scanning telephone lines to detect unauthorised modems attached to networks or standalone systems.

“We are making a strong case for war dialling as it is not being taken seriously, even among corporate clients," NTA Monitor group managing director Roy Hills said here recently.

"Without war dialling, users run the risk of having unauthorised modems opening the backdoor of their networks," he said.

By Ahmad Zuber Ibrahim at TechCentral.

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