Security comes as standard

Get extra peace of mind with built-in security for your money and data. Trusted by millions of customers worldwide, Klarna comes with advanced fraud prevention and 24/7 support.

Protection with every payment

Our 150+ fraud prevention specialists use advanced technology to keep you safe from fraud and scams. Here's how Klarna helps you shop securely.

Top-tier encryption

Stay protected with top-level encryption that ensures your personal data stays exactly where it belongs.

Twice as secure

Add an extra security layer with two-factor authentication (2FA), in case your password is ever compromised.

Smart fraud-busting

Stay one step ahead thanks to real-time fraud monitoring, powered by machine learning.

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Your security, built into the Klarna app

Download the app:

Stay safe and in control with the app

Smart identification

Secure your account with biometrics and passkeys for a login experience that's fast for you and impossible to crack for everyone else.

Instant alerts

Get real-time push notifications for every account activity. If something looks off, freeze your account in a few taps.

Activity monitoring

Connect your email to automatically track all your purchases in the app, even those not made with Klarna, so nothing goes unnoticed.

Secure payments

Sign in and breeze through checkout by using Face ID or your fingerprint. Passkeys mean no codes are needed when you pay, ever.

Account safety

Instantly sign out at all stores and lock your account in seconds if you spot any signs of suspicious or fraudulent activity.

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Your data is in safe hands

  • We only collect what's needed to provide our services, protecting your data with strong encryption.

  • We give you full control over your information via our app, website, or customer service.

  • We comply with global data protection standards, as outlined in our Privacy Policy.

“At Klarna, security isn’t just 
a feature, it’s a commitment”

Yaron Shaer, Chief Technology Officer (High)

We put our customers at the heart of our design process, to make sure that your data is protected while delivering a user-friendly experience. Our mission is to empower you to shop confidently, knowing that your security is our top priority.

Yaron Shaer, Chief Technology Officer at Klarna

Frequently asked questions

Run into a potential security issue? Here are some tips on what to do.

Be cautious of any message that asks you to click unknown links, submit sensitive information or creates a false sense of urgency.

  • Do not click on any links or open attachments. Delete the message immediately.

  • You can also mark it as phishing in your mailbox.

  • If you shared details: Contact us immediately to freeze your account.

To report a suspicious email or website, fill out this form and our security team will investigate.

  • Contact Klarna and your bank immediately.

  • Stop further damage by locking your account.

  • Remember to change your passwords and monitor your account closely for any signs of unauthorized activity.

  • Immediately contact Klarna to report the lost device or card.

  • Freeze or disable your physical card in the Klarna app.

  • Sign out remotely and change passwords for any account accessible on the lost device.

  • Inform your bank about possible unauthorised access especially if the device is auto logged-in to any financial or personal accounts.

  • Secure your account by changing your credentials immediately and upgrading to two factor authentication.

  • Immediately contact Klarna to report the suspicious activity and our team will investigate.

  • Regularly check your account for unfamiliar activity to catch potential fraud early.

  • Always double check before making any payments, particularly those demanding money urgently and unexpectedly.

  • Log in to your app to check for any outstanding payment.

  • Before making any purchases online, research the company and read independent reviews.

  • Check that the website URL is spelled correctly and starts with https://. The "s" means your data is encrypted.

  • If something feels off, trust your instincts.

  • Do not open the file. Delete it immediately and run a virus scan.

  • Make sure you have up-to-date antivirus software installed to protect against malicious downloads.

  • Keep monitoring your accounts closely for any unauthorised activit

  • Always be cautious when contacted unexpectedly, even if it seems to be legitimate.

  • If in doubt, end the conversation and independently contact Klarna directly using a trusted method like the customer service page.

  • It's always better to double-check before sharing any personal or financial information.

Stay informed, stay safe

Discover how to protect yourself from fraud and keep your personal information safe with Klarna.

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Copyright © 2005-2026 Klarna. Klarna Financial Services UK Limited is authorised and regulated by the Financial Conduct Authority (“FCA”) for carrying out regulated consumer credit activities (firm reference number 987889) and the provision of payment services and the issuing of electronic money under the Electronic Money Regulations 2011 (firm reference number 1021834). Klarna Financial Services UK Limited offers both regulated and unregulated products. Klarna’s interest free and pay up to 12 months Financing agreements, Pay in 3 instalments and Pay in 30 days agreements are not regulated by the FCA. Incorporated in England (company number 14290857), with its registered office at 10 York Road, London, SE1 7ND.