16.05.2023 - Access to many applications and digital services is now protected with two-factor authentication. Smartphones are playing an increasingly important role in this. They are not only used to run applications and services, they are also often used to generate the second factor, be it through a one-time password generator or by receiving a text message. Therefore, cybercriminals are also increasingly trying to gain access to these devices in order to obtain all the required factors. In a recent report to the NCSC, the attackers used a technique called SIM swapping to do this.