--- title: Basic-Fit data breach exposes personal and bank details... description: Basic-Fit, Europe's largest budget gym chain, has confirmed a cyberattack exposing personal and financial data of approximately 1 million members across six... canonical: https://daily.dev/posts/basic-fit-data-breach-exposes-personal-and-bank-details-of-around-1-million-members-across-europe-nmg0tf77i twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Basic-Fit data breach exposes personal and bank details of around 1 million members across Europe | daily.dev og:description: Basic-Fit, Europe's largest budget gym chain, has confirmed a cyberattack exposing personal and financial data of approximately 1 million members across six... og:url: https://daily.dev/posts/basic-fit-data-breach-exposes-personal-and-bank-details-of-around-1-million-members-across-europe-nmg0tf77i og:image: https://api.daily.dev/og/posts/NmG0tF77i.png og:image:alt: Basic-Fit data breach exposes personal and bank details of around 1 million members across Europe og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Basic-Fit data breach exposes personal and bank details of around 1 million members across Europe **[Collections](https://daily.dev/sources/collections)** · 2 min read · 1 upvotes · 0 comments ## Summary Basic-Fit, Europe's largest budget gym chain, has confirmed a cyberattack exposing personal and financial data of approximately 1 million members across six European countries. Compromised data includes full names, addresses, phone numbers, dates of birth, and IBAN bank account details — though passwords were not accessed. The breach was detected quickly by internal monitoring, external security experts have been engaged, and data protection authorities have been notified. The primary risk is SEPA direct debit fraud, where attackers could use IBAN details combined with personal information to initiate unauthorized bank transfers. Members are advised to monitor for unexpected debits and be alert to phishing attempts leveraging the leaked data. ## Content Basic-Fit, Europe's largest budget gym chain, has confirmed a cyberattack that exposed personal and financial data belonging to roughly 1 million members across six countries: the Netherlands, Belgium, Luxembourg, France, Spain, and Germany. Around 200,000 of those affected are based in the Netherlands. Hackers gained unauthorized access to the system used to record member check-ins and visit history. The data taken includes full names, home and email addresses, phone numbers, dates of birth, and bank account (IBAN) details. Passwords were not accessed, and Basic-Fit says it does not store identity documents. Data belonging to franchise members was held separately and was not affected. The breach was detected and stopped within minutes by internal monitoring systems. Basic-Fit has since brought in external security experts and says no stolen data has surfaced online so far. Relevant data protection authorities, including the Dutch Data Protection Authority, have been notified. The exposure of IBAN numbers alongside personal details is the main concern here. That combination is enough to attempt SEPA direct debit fraud, where someone initiates an unauthorized bank transfer using a victim's account details. Members should watch for unexpected debits and be cautious of phishing attempts that use the leaked information to appear credible. The incident follows a similar breach at Dutch telecom Odido earlier in 2026, continuing a pattern of attacks aimed at systems that aggregate customer identity and payment data in one place. --- Tags: [#cyber](https://daily.dev/tags/cyber), [#data-breach](https://daily.dev/tags/data-breach), [#gdpr](https://daily.dev/tags/gdpr) [View this post on daily.dev](https://daily.dev/posts/basic-fit-data-breach-exposes-personal-and-bank-details-of-around-1-million-members-across-europe-nmg0tf77i) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Basic-Fit data breach exposes personal and bank details of around 1 million members across Europe","url":"https://daily.dev/posts/basic-fit-data-breach-exposes-personal-and-bank-details-of-around-1-million-members-across-europe-nmg0tf77i","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/basic-fit-data-breach-exposes-personal-and-bank-details-of-around-1-million-members-across-europe-nmg0tf77i"},"datePublished":"2026-04-13T11:29:00.180Z","dateModified":"2026-04-13T21:58:01.343Z","description":"Basic-Fit, Europe's largest budget gym chain, has confirmed a cyberattack exposing personal and financial data of approximately 1 million members across six...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/0a31dd0c4e712a89de378224fc541699?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/0a31dd0c4e712a89de378224fc541699?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Collections","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Collections","logo":"https://media.daily.dev/image/upload/s--fk_6ycEi--/f_auto,q_auto/v1780996001/logos/collections?_a=BAMAMiWQ0","url":"https://daily.dev/sources/collections"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/basic-fit-data-breach-exposes-personal-and-bank-details-of-around-1-million-members-across-europe-nmg0tf77i","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"cyber,data-breach,gdpr","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Collections","item":"https://daily.dev/sources/collections"},{"@type":"ListItem","position":3,"name":"Basic-Fit data breach exposes personal and bank details of around 1 million members across Europe"}]} ```