Giesecke & Devrient has been working with Vodafone on a secure login process for digital identities which uses a specially secured SIM card as a second authentication element in addition to a password.Called Vodafone Secure Login, the solution is based on a SIM card and incorporates "a special security mechanism", said G&D in a statement.During production, the SIM card is given a permanent unique identity. When the product is shipped, this identity can be linked with its subsequent user via various secure procedures.The SIM card can therefore be used as a second component that is a mandatory requirement when logging in to networks or services. In this way, it safeguards internet transactions or confirms access to a network. The simple act of "phishing" for the username and password no longer provides cyber criminals with access to digital identities.Companies can therefore safeguard access to their networks and even to the web-based services used outside of their firewalls. These include CRM systems, accounting systems, communication systems such as e-mail, or systems for supporting business processes.