Security comes as standard

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

Protection with every payment

Our team of 150+ fraud prevention specialists use advanced techniques to protect your money from fraud and scams. Discover some of the ways Klarna helps you shop securely.

This stays between us

We use advanced encryption like AES-256 and TLS to keep your sensitive information hidden.

Pay incognito

Klarna’s one-time card service makes your personal data unreadable to fraudsters.

Smart fraud-busting

Powered by machine learning, our real-time monitoring stops potential fraud attempts in their tracks.

Your data’s in safe hands

Your personal information stays personal with Klarna, and you can enjoy extra peace of mind with our secure management tools and global compliance.

  • We collect only what’s needed, encrypting your data for protection.

  • Manage or delete your data anytime via our app, website, or customer service.

  • Klarna meets global data protection standards, outlined in our privacy policy.

Putting you in control

Stay one step ahead of fraud and scams, with state-of-the-art security tools that are working hard to keep your money safe.

Private payments

Private payments

Reduce the risk of fraud with Klarna’s one-time card service, which lets you pay without the need to share your actual card details.

Smart Identification

Smart identification

Pick your preferred biometric authentication method for a quick and secure app login experience—whether via facial recognition or fingerprint.

Instant Activity Alerts

Instant activity alerts

Get real-time notifications for any suspicious transactions or login attempts, so you can shop with peace of mind.

Stay on top of your purchases

Stay on top of your purchases

Connect your inbox to get every purchase emailed to you for extra convenience and security—even those not made with Klarna.

“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 unauthorized 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 unauthorized activity.

  • 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.