Turkcell, Turkey’s largest mobile operator in terms of subscribers, is launching a range of new applications using a SIM-based mobile signature solution from Dutch digital security firm Gemalto. The Gemalto solution allows subscribers to securely access online services that require strong authentication using their mobile phone to sign their transactions and documents by means of a legally binding electronic signature. Turkcell initially launched its mobile signature programme with the deployment of internet banking services. This second phase sees the rollout of a broader range of online applications such as stock exchange transactions, tax returns or patent registration requests. Turkcell is Turkey’s leading mobile operator with more than 35 million subscribers.