Estonian Mobile ID allows people to use a mobile phone as a form of a secure digital ID.

Like the ID card, it can be used to access secure e-services and digitally sign documents but has the added advantage of not requiring a card reader.

The system is based on a special mobile SIM card, which the customer must request from the mobile phone operator. Private keys are stored on the mobile SIM card along with a small application delivering the authentication and signature functions.

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