At Klarna, we take security issues seriously and constantly strive to achieve the highest possible security and quality. Despite this, an error may slip by. If you have discovered a vulnerability in our products or systems, we would like to hear more about it to be able to correct the problem as soon as possible.

Thank you for helping us improve and strengthen the safety of our systems by sharing your discovery with us.

To report a security flaw, fill in the form below. Our partners at HackerOne will review the submission and follow up with you. If the finding is valid, you will then hear from our security group. Reported vulnerabilities are fixed in accordance with our policies.

Form not working? That’s ok – you can also send us an email with information at responsible-disclosure@klarna.com.