--- title: Iris Ohyama data cloud breach exposes info of 7.7... description: Japanese manufacturer Iris Ohyama disclosed a data breach that may have exposed personal information of about 7.7 million people from its Iris Plaza online... canonical: https://daily.dev/posts/iris-ohyama-data-cloud-breach-exposes-info-of-7-7-million-customers-7mzbylhm3 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Iris Ohyama data cloud breach exposes info of 7.7 million customers | daily.dev og:description: Japanese manufacturer Iris Ohyama disclosed a data breach that may have exposed personal information of about 7.7 million people from its Iris Plaza online... og:url: https://daily.dev/posts/iris-ohyama-data-cloud-breach-exposes-info-of-7-7-million-customers-7mzbylhm3 og:image: https://api.daily.dev/og/posts/7mZbYlhM3.png og:image:alt: Iris Ohyama data cloud breach exposes info of 7.7 million customers 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. # Iris Ohyama data cloud breach exposes info of 7.7 million customers **[BleepingComputer](https://daily.dev/sources/bleepingcomputer)** · 3 min read · 0 upvotes · 0 comments ## Summary Japanese manufacturer Iris Ohyama disclosed a data breach that may have exposed personal information of about 7.7 million people from its Iris Plaza online store. Unauthorized access was found in a third-party cloud service used by the platform. Exposed data may include full names, addresses, phone numbers, emails, gender, dates of birth and account passwords. Passwords for active members are stored in encrypted form. Credit card data was not stored in the affected service. The impact extends to up to 5.8 million members and former members, plus 1.9 million non-members. The online store (SIMPLE STYLE) and related systems were suspended on October 28, and Japan's Personal Information Protection Commission and police were notified on October 29. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How many customers were affected by the Iris Ohyama data breach? Up to 7.7 million people may have been affected, including as many as 5.8 million registered and former members of the Iris Plaza online store and 1.9 million non-members. The company discovered a suspicious file in a third-party cloud service used by Iris Plaza and confirmed unauthorized access by a third party, first disclosed on October 29, 2026. _Teams assessing breach scope and customer notification duties can track incident details like this on daily.dev._ ### What kind of customer data was exposed in the Iris Plaza breach? Exposed data may include full names, physical addresses, phone numbers, email addresses, gender, dates of birth, and account passwords, though the exposed types vary per individual and former members had no passwords stored. Passwords for active registered members were stored in encrypted form, though the specific encryption scheme was not disclosed. No credit card information was stored in the affected cloud service. _Developers weighing what customer data to store in third-party cloud services can follow breach disclosures like this on daily.dev._ ## Similar posts on daily.dev - [Sakura Internet hack exposes data of up to 1.36 million accounts](https://daily.dev/posts/sakura-internet-hack-exposes-data-of-up-to-1-36-million-accounts-ugpbzqp74) · BleepingComputer · 0 upvotes · 0 comments - [Telco giant KDDI says data breach affects over 12 million people](https://daily.dev/posts/telco-giant-kddi-says-data-breach-affects-over-12-million-people-mu8uzzc5b) · BleepingComputer · 0 upvotes · 0 comments - [Cosmetics giant Rituals confirms data breach of customer membership records](https://daily.dev/posts/cosmetics-giant-rituals-confirms-data-breach-of-customer-membership-records-azend6niq) · TechCrunch · 0 upvotes · 0 comments - [Aflac Japan Data Breach Impacts 4.38 Million Customers and Agents](https://daily.dev/posts/aflac-japan-data-breach-impacts-4-38-million-customers-and-agents-qvipd127b) · Security Boulevard · 0 upvotes · 0 comments --- Tags: [#security](https://daily.dev/tags/security), [#ecommerce](https://daily.dev/tags/ecommerce), [#data-breach](https://daily.dev/tags/data-breach) [View this post on daily.dev](https://daily.dev/posts/iris-ohyama-data-cloud-breach-exposes-info-of-7-7-million-customers-7mzbylhm3) ```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":"Iris Ohyama data cloud breach exposes info of 7.7 million customers","url":"https://daily.dev/posts/iris-ohyama-data-cloud-breach-exposes-info-of-7-7-million-customers-7mzbylhm3","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/iris-ohyama-data-cloud-breach-exposes-info-of-7-7-million-customers-7mzbylhm3"},"datePublished":"2026-11-08T15:47:28.377Z","dateModified":"2026-11-08T15:47:55.483Z","description":"Japanese manufacturer Iris Ohyama disclosed a data breach that may have exposed personal information of about 7.7 million people from its Iris Plaza online...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/3affa5358ce29b08276ab9584cbb04b9?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/3affa5358ce29b08276ab9584cbb04b9?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"BleepingComputer","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":"BleepingComputer","logo":"https://media.daily.dev/image/upload/s--as8nJ3qy--/f_auto,q_auto/v1774959951/logos/bleepingcomputer?_a=BAMAMiWQ0","url":"https://daily.dev/sources/bleepingcomputer"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/iris-ohyama-data-cloud-breach-exposes-info-of-7-7-million-customers-7mzbylhm3","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"security,ecommerce,data-breach","timeRequired":"PT3M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"BleepingComputer","item":"https://daily.dev/sources/bleepingcomputer"},{"@type":"ListItem","position":3,"name":"Iris Ohyama data cloud breach exposes info of 7.7 million customers"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/iris-ohyama-data-cloud-breach-exposes-info-of-7-7-million-customers-7mzbylhm3#faq","mainEntity":[{"@type":"Question","name":"How many customers were affected by the Iris Ohyama data breach?","acceptedAnswer":{"@type":"Answer","text":"Up to 7.7 million people may have been affected, including as many as 5.8 million registered and former members of the Iris Plaza online store and 1.9 million non-members. The company discovered a suspicious file in a third-party cloud service used by Iris Plaza and confirmed unauthorized access by a third party, first disclosed on October 29, 2026. Teams assessing breach scope and customer notification duties can track incident details like this on daily.dev."}},{"@type":"Question","name":"What kind of customer data was exposed in the Iris Plaza breach?","acceptedAnswer":{"@type":"Answer","text":"Exposed data may include full names, physical addresses, phone numbers, email addresses, gender, dates of birth, and account passwords, though the exposed types vary per individual and former members had no passwords stored. Passwords for active registered members were stored in encrypted form, though the specific encryption scheme was not disclosed. No credit card information was stored in the affected cloud service. Developers weighing what customer data to store in third-party cloud services can follow breach disclosures like this on daily.dev."}}]} ```