In its 12/2017 issue, the computer magazine CHIP tested various online payment methods for convenience, security, privacy and fraud protection. Klarna - Europe's leading provider of invoice-based payment solutions for online commerce - was named the test winner.Klarna was particularly convincing in the security category: Customers only need to enter their address, e-mail address and date of birth to use the service. Since no registration and password assignment is required, there is no need for the password (in)security and phishing risk criticized with many other payment methods. The fact that Klarna meets particularly high security and data protection standards is nothing new. Back in 2011, Klarna was the first invoice-based payment provider to receive the "TÜV - Geprüftes Zahlungssystem" seal for this.