Is CSM still secure?

The security evolution of GSM to 3GSM has allowed the standards to develop, and where circumstances permit, overcome some of the potential flaws identified in GSM. As a result many safeguards have been built in to the GSM and 3 GSM technologies to prevent misuse. While the spotlight often rests on the technical threats, the reality is that the majority of threats associated with the mobile industry is far more basic in nature. The work to combat any new technical threats will of course continue as we strive to stay ahead of the criminals and, in recognition of the industry's growing maturity.