A bug in the Klarna Blank app allowed access to other customers’ bank accounts

Application failures are often the order of the day, and usually the users themselves expose the problem. That hasn’t changed with a bug in the applicati on of Swedish bank Klarna Blank

, which allowed users to access the bank accounts of different customers, instead of their own, each time they logged in.

Reports of the Klarna Blank bug began this week when several users protested on social media about the insecure error that gave them access to other users’ stored information. The app has since suspended access to it, sharing the message “out of service for maintenance”, although it continues to offer the service on the website.

Klarna Blank bug reveals bank details

According to the statement from Klarna Bank, the problem was generated by a recent update which led to the technical issue which exhibited the data by 0.1%, or about 90,000 users.

“This is why we are saddened and frustrated to inform you of a self-inflicted incident, which for 31 minutes affected up to 0.1%, or approximately 90,000, of our users. The bug led to exposing random user data to the wrong user when accessing our user interfaces. “

@Klarna @AskKlarna has a major safety issue on their hands this morning !!!! Each connection is a detail of different people 🤦‍♀️🤦‍♀️ pic.twitter.com/0JsTGcGIgE

– Kerrie Stewart (@KezStew) May 27, 2021

While Klarna claims the bug exposed only non-sensitive data, users report this to be inaccurate. Those who saw the error claim that they were able to see confidential data

, including names, cell phone numbers, addresses, registered bank accounts, registered purchases, and credit cards. To prove it, one user shared his experience on Twitter: