New Zealand's Leader in Electronic Debugging Sweeps

Communications Security Limited (CSL) is New Zealand's leading electronic countermeasures company having provided sweep services to corporates and Government Departments for over 20 years.

CSL was established in 1985 following extensive overseas investigations and research by the Directors into the international methods for the protection of confidential information.

Since it's beginning CSL has become a New Zealand market leader in the provision of information security services with a prestigious client list including large corporations, banking institutions, Government Departments and State Owned Enterprises.

The Directors of CSL have invested heavily in high quality countermeasures equipment and our technical personnel are kept up to date with the latest threats and detection techniques through in-house and international training.

CSL conducts eavesdropping countermeasures surveys ( or debugging sweeps) throughout New Zealand and will accept international engagements in Australia, Asia and the Pacific.