Verfahren zum Absichern einer Transaktion auf einem Computernetzwerk

摘要

The invention relates to a method for securing a transaction that is made through a computer network. According to the method, a one-off transaction password is transmitted to a service user. This password is transmitted by said service user to a service provider via the communications network in order to confirm the transaction. The transaction password is transmitted to a mobile communications terminal of the service user via a mobile radio network.