{"id":127589,"date":"2026-10-05T17:18:17","date_gmt":"2026-10-05T08:18:17","guid":{"rendered":"https:\/\/japanir.jp\/en\/ir\/3097-20261005-01_wp_general_ir\/"},"modified":"2026-10-05T17:18:17","modified_gmt":"2026-10-05T08:18:17","slug":"3097-20261005-01_wp_general_ir","status":"publish","type":"ir_release","link":"https:\/\/japanir.jp\/en\/company\/company-3097\/ir\/3097-20261005-01_wp_general_ir\/","title":{"rendered":"Notice Regarding Personal Information Leak in the Yakiniku King Official App Member Management System"},"content":{"rendered":"<p>Due to unauthorized third-party access to the app member management system, 10,788,963 members&#8217; information was leaked. No passwords or payment information were present. The company is advancing recurrence prevention measures and legal compliance, and is currently assessing any potential impact on future performance.<\/p>\n","protected":false},"comment_status":"open","ping_status":"closed","template":"","meta":{"Ticker":"","DATE":"","longName":"","company_name_ja":"","fullTimeEmployees":0,"address":"","phone":"","website":"","industry":"","sector":"","regularMarketPrice":0,"financialCurrency":"","marketCap":0,"fiftyTwoWeekLow":0,"fiftyTwoWeekHigh":0,"epsTrailingTwelveMonths":0,"epsForward":0,"bookValue":0,"totalRevenue":0,"OperatingIncome":0,"operatingMargins":0,"NetIncome":0,"profitMargins":0,"ebitda":0,"trailingPE":0,"forwardPE":0,"priceToBook":0,"returnOnEquity":0,"recommendationMean":0,"recommendationKey":"","targetMeanPrice":0,"numberOfAnalystOpinions":0,"analyst_earnings_data":"","dividendRate":0,"dividendYield":0,"payoutRatio":0,"totalEsg":0,"environmentScore":0,"socialScore":0,"governanceScore":0,"title":"","providerPublishTime":"","link":"","longBusinessSummary":"","longBusinessSummary_ja":"","quarterly_revenue":0,"quarterly_net_income":0,"quarterly_operating_profit":0,"enterprise_value":0,"price_fetched_at":"","company_officer_1_name":"","company_officer_1_title":"","company_officer_2_name":"","company_officer_2_title":"","company_officer_3_name":"","company_officer_3_title":"","company_officer_4_name":"","company_officer_4_title":"","company_officer_5_name":"","company_officer_5_title":"","company_officers_update_time":"","get_dividend_history_year1":0,"get_dividend_history_year2":0,"get_dividend_history_year3":0,"get_dividend_history_year4":0,"get_dividend_history_year5":0,"get_dividend_history_year6":0,"get_dividend_history_year7":0,"get_dividend_history_year8":0,"get_dividend_history_year9":0,"get_dividend_history_year10":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"jir_stock_code":"3097","jir_company_name":"The Monogatari Corporation","jir_importance":"\u2605\u2605\u2605\u2605\u2606","jir_publication_date":"2026-10-05","jir_source_link":"https:\/\/japanir.jp\/wp-content\/uploads\/2026\/10\/3097-20261005-01.pdf","jir_short_summary":"Due to unauthorized third-party access to the app member management system, 10,788,963 members' information was leaked. No passwords or payment information were present. The company is advancing recurrence prevention measures and legal compliance, and is currently assessing any potential impact on future performance.","jir_summary":"### Key Points\nUnauthorized third-party access to the member management system of the Yakiniku King official app has been confirmed, resulting in a leak of some member information. Leaked information includes member ID number, full name, email address, and phone number. Passwords and other sensitive information and payment information are reported not to have been leaked. Investigations are ongoing, and any new information that should be disclosed will be published promptly.\n\n### Response and Impact\nThe company will cooperate with the developer and related parties to strengthen security measures, report to the Personal Information Protection Commission, and submit a damage report to the police. Customers have been notified to be cautious of suspicious communications. The impact on future business performance is TBD and will be disclosed as the investigation progresses.","jir_financial_highlights":"Number of records leaked: 10,788,963 cases (Unknown)","jir_category":"","jir_hashtags":"#CompanyInformation, #Security, #PersonalDataProtection, #IRInformation","jir_key_figures":"Number of records leaked: 10,788,963 cases\nRegistered records: out of 10,808,784 cases\nTypes of information: Member ID number, full name, email address, phone number","jir_meta_title":"The Monogatari Corporation - Notice of Yakiniku King Official App Member Information Leak | October 2026","jir_meta_description":"Announcement of a leak of member information from the Yakiniku King official app. Details on the number of records leaked, contents, scope of impact, recurrence prevention measures, and future actions. Earnings impact is TBD; investigation ongoing.","jir_og_title":"Notice of Yakiniku King Member Information Leak | October 2026","jir_og_description":"Announcement of a leak of member information from the official app. Number of records leaked: 10,788,963 cases. Follow updates on measures and future developments.","jir_og_image_url":"\/assets\/og\/company-general_ir.jpg","jir_chart_data_collection":"[]","ir_related_company":9092,"ir_release_date":"","ir_type":"","ir_is_new":false,"ir_document_url":"","jir_ir_type":"general_ir","footnotes":""},"sector":[],"importance":[],"class_list":["post-127589","ir_release","type-ir_release","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Notice Regarding Personal Information Leak in the Yakiniku King Official App Member Management System - Japan IR<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/japanir.jp\/en\/company\/company-3097\/ir\/3097-20261005-01_wp_general_ir\/\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/japanir.jp\/en\/company\/company-3097\/ir\/3097-20261005-01_wp_general_ir\/\",\"url\":\"https:\/\/japanir.jp\/en\/company\/company-3097\/ir\/3097-20261005-01_wp_general_ir\/\",\"name\":\"Notice Regarding Personal Information Leak in the Yakiniku King Official App Member Management System - 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