![]() ![]() None of them spotted the mistake in the configuration update. The change was then reviewed by three other authorized engineers in three separate teams, according to normal processes. This configuration change had been written by an authorized engineer in one team, consulting but misinterpreting vendor documentation.A Klarna team had prepared a CDN configuration update as part of a project that aimed to improve the visibility for the user of where a particular device / account was used.This had us conclude that the CDN configuration update was the root cause, and the actions we took during the afternoon were based on that now confirmed hypothesis.ĭuring the continued analysis work we made the following findings: Consulting documentation and experts, it was clear that the cache change would without a doubt result in the observed erroneous behavior.Verified in logs that calls to our backend had been cached in an unexpected way during the time period.The observed erroneous behavior started right after the CDN configuration update was rolled out.The CDN configuration update had included a line that changed the cache configuration.Soon after the app was disabled, we had confirmed the following: One of the first updates identified as a potential cause was a change to our Content Delivery Network (CDN) configuration. They immediately started to evaluate all recent changes made to our production environment. On May 27, Klarna experienced a configuration error causing Klarna app users to see some of each other’s information.įor more information about how users were affected see the main blog post.Īs soon as we got reports of issues, we assembled an incident management team that represented all relevant parts of the Klarna development organization. 17:35 The app was fully online again in all markets.16:08 We began to bring the app back online in all markets.11:20 We completely disabled the app in all markets.11:18 We identified the configuration update as the probable root cause and reverted the update.11:15-11:20 We disabled app features known to be affected by the incident to prevent further information leaks.11:01 We identified the situation as extremely serious, raised it as a critical incident and escalated it to senior management.10:58 We began to investigate multiple issues based on incoming user reports.10:49 We deployed the problematic configuration update.In addition to mitigating the current incident, we have implemented a number of changes to prevent recurrence and reduce the impact of this type of issue, and continue to work on additional safeguards to protect personal information. We detected that something was wrong within 9 minutes, and identified the cause and disabled the app within 31 minutes. The result of this configuration error was that information belonging to different users were cached and visible to other users. To summarize, one of our development teams made a configuration update which included an unintentional change to how information is cached between our backend and our app. The root cause of this incident is detailed below. Despite this, on May 27 2021, a number of our users saw some of their information exposed to other users. We have numerous safeguards in place to protect against information leaks. Security and the protection of personal information is our highest priority. While the normal edition will be sold for $99 (8,178), a signed edition of 'Letters to Trump' will cost $399 (Rs 32,962).Millions of users rely on Klarna to keep their personal information safe. Two editions of the book will be made available. No book highlights his iconic relationships like 'Letters to Trump,' and we are thrilled to be able to share it with our readers,'' he added. "Long before entering politics, Donald Trump lived an extraordinary life. "What do presidents, royals, celebrities, and business titans have in common? They all love Donald Trump," Winning Team Publishing founder Sergio Gor said in a statement to AFP. Winning Publishing, the publisher behind the book, said that the book will be released on April 25. He added that the book will shine a light on "how phoney" the disdain of these people is. It's amazing how quickly their adoration of him changed when he ran for office as a Republican,'' said Donald Trump Jr. ''My father has lived an amazing life and has been around some of the most interesting people in the world. Meanwhile, his eldest son Donald Trump Jr, claimed that the A-list celebrities treated his father differently when he ran for office as a Republican. Other famous names from the 150 letters also include Clint Eastwood, Michael Jackson, former presidents Richard Nixon, Ronald Reagan, George W. ![]()
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