{"id":111970,"date":"2026-09-10T11:32:54","date_gmt":"2026-09-10T02:32:54","guid":{"rendered":"https:\/\/japanir.jp\/en\/ir\/3778-20260910-01_wp_disclosure_update\/"},"modified":"2026-09-10T11:32:54","modified_gmt":"2026-09-10T02:32:54","slug":"3778-20260910-01_wp_disclosure_update","status":"publish","type":"ir_release","link":"https:\/\/japanir.jp\/en\/company\/company-3778\/ir\/3778-20260910-01_wp_disclosure_update\/","title":{"rendered":"Investigation results on unauthorized access to our systems and measures to prevent recurrence (Third Report)"},"content":{"rendered":"<p>Publish the third report on the unauthorized access investigation. The impact is expected to be limited; however, some customer information in Sakura Rental Server and the sales management system may have been accessed, and the number of targeted accounts is expanding to a total of 1,?; going forward, we will strengthen recurrence prevention measures and continue individual responses.<\/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,"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":"3778","jir_company_name":"Sakura Internet Inc.","jir_importance":"\u2605\u2605\u2605\u2606\u2606","jir_publication_date":"2026-09-10","jir_source_link":"https:\/\/japanir.jp\/wp-content\/uploads\/2026\/09\/3778-20260910-01.pdf","jir_short_summary":"Publish the third report on the unauthorized access investigation. The impact is expected to be limited; however, some customer information in Sakura Rental Server and the sales management system may have been accessed, and the number of targeted accounts is expanding to a total of 1,?; going forward, we will strengthen recurrence prevention measures and continue individual responses.","jir_summary":"### Overview of investigation results\nThis report, published as the third report, organizes the unauthorized access to a portion of Sakura Rental Server environments and the sales management system and the scope of its impact. A total of 951 accounts were identified as targeted; information for 1,360,563 accounts may have been stored in the sales management system, and hashed password information for 30 accounts may have been viewed. Details on cause and intrusion route are being withheld. As a preventive measure, multi-layered access control and enhanced monitoring are listed.\n\n### Future actions and outlook\nWe will continuously implement recurrence prevention measures. We aim to rebuild all servers, conduct external audits, strengthen security training, and improve governance. While no external data exfiltration or secondary damage has been confirmed at this time, we will continue monitoring and respond to individual cases. The impact on earnings is expected to be limited; if any new disclosure items arise, we will disclose promptly.","jir_financial_highlights":"Sales Revenue: Unknown (Unknown)\nImpact on Consolidated Results: Expected to be limited (Outlook)","jir_category":"","jir_hashtags":"#SakuraInternet, #InformationSecurity, #DisclosureUpdate","jir_key_figures":"Total targeted accounts: 951 accounts\nTotal member information stored in the sales management system: 1,360,563 accounts\nHashed member ID password information: 30 accounts","jir_meta_title":"Sakura Internet: Disclosure of Third Report on Unauthorized Access Investigation | September 10, 2026","jir_meta_description":"Sakura Internet discloses the third report on the unauthorized access investigation. The impact range is expected to be limited, but disclosure of potential data leakage from Sakura Rental Server and the sales management system, and the status of recurrence prevention measures. Also outlines future response policy.","jir_og_title":"Sakura Internet: Disclosure of Third Report on Unauthorized Access Investigation | September 10, 2026","jir_og_description":"Publicizes the investigation results and recurrence prevention measures as the third report. Explains targeted accounts, impact scope, and future actions. Earnings impact is expected to be limited, with continued monitoring.","jir_og_image_url":"\/assets\/og\/company-general_ir.jpg","jir_chart_data_collection":"[]","ir_related_company":9414,"ir_release_date":"","ir_type":"","ir_is_new":false,"ir_document_url":"","jir_ir_type":"disclosure_update","footnotes":""},"sector":[],"importance":[],"class_list":["post-111970","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>Investigation results on unauthorized access to our systems and measures to prevent recurrence (Third Report) - 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-3778\/ir\/3778-20260910-01_wp_disclosure_update\/\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/japanir.jp\/en\/company\/company-3778\/ir\/3778-20260910-01_wp_disclosure_update\/\",\"url\":\"https:\/\/japanir.jp\/en\/company\/company-3778\/ir\/3778-20260910-01_wp_disclosure_update\/\",\"name\":\"Investigation results on unauthorized access to our systems and measures to prevent recurrence (Third Report) - 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