This is the third report concerning unauthorized access to the trading system provided to Iwai Cosmo Securities. It summarizes the cause, impact, response status, and future reinforcement measures. The impact is limited, but there is a possibility of customer information leakage; an apology is issued and measures to prevent spread to other companies’ systems are specified. Direct impact on financial results is currently unknown and will be examined further.<\/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":"3997","jir_company_name":"TRADE WORKS Co., Ltd","jir_importance":"\u2605\u2605\u2605\u2606\u2606","jir_publication_date":"2026-11-02","jir_source_link":"https:\/\/japanir.jp\/wp-content\/uploads\/2026\/11\/3997-20261102-01.pdf","jir_short_summary":"This is the third report concerning unauthorized access to the trading system provided to Iwai Cosmo Securities. It summarizes the cause, impact, response status, and future reinforcement measures. The impact is limited, but there is a possibility of customer information leakage; an apology is issued and measures to prevent spread to other companies' systems are specified. Direct impact on financial results is currently unknown and will be examined further.","jir_summary":"### Overview of the Incident and Scope of Impact\nThis is the third report regarding unauthorized access to the system provided to Iwai Cosmo Securities. The cause was a misconfiguration of administrative functions. As an impact, unintended trade orders were executed for some customer accounts but have been restored to their pre-transaction state, and no financial burden has occurred. There is a possibility that personal information (names, email addresses, etc.) of 4,975 customers was leaked; however, account logins and fund transfers are not possible.\n\n### Response and Future Reinforcement Measures\nWe have established an incident response headquarters, inspected external exposure routes, conducted vulnerability assessments and fixes, strengthened login protection, implemented multi-layered defenses, enhanced monitoring systems, standardized reporting criteria and operations, and performed similar inspections and reinforcements for partner systems. Going forward, we will promote internal organizational integration and reinforcement, standardization of monitoring and reporting criteria, and standardization of security levels.","jir_financial_highlights":"Impact on Financial Results: Unknown (No revisions to full-year consolidated earnings guidance have been made at this time; if matters requiring disclosure are identified, we will announce them)\nEstimated Loss Amount: approx. 50 million yen (Amount previously announced on October 23)","jir_category":"","jir_hashtags":"#TRADEWORKS_News, #SecurityResponse, #DisclosureUpdate","jir_key_figures":"Estimated loss amount: approx. 50 million yen\nScope: Systems for the counterparty and related countermeasures\nPotential information leakage: Personal information (names, email addresses, etc.) of 4,975 customers","jir_meta_title":"TRADE WORKS Co., Ltd - Third Report on Unauthorized Access Response\uff5cNovember 2026","jir_meta_description":"TRADE WORKS Co., Ltd discloses the cause, impact, response measures, and future reinforcement measures regarding unauthorized access to the system for Iwai Cosmo Securities. Impact is limited but there is a possibility of customer information leakage and measures to prevent recurrence are explained.","jir_og_title":"Third Report on Unauthorized Access Response\uff5cTRADE WORKS","jir_og_description":"TRADE WORKS Co., Ltd has released the third report on a cyberattack. Details on scope of impact, response status, and future reinforcement measures are provided. Direct impact on financial results is undetermined.","jir_og_image_url":"\/assets\/og\/company-general_ir.jpg","jir_chart_data_collection":"[]","ir_related_company":58171,"ir_release_date":"","ir_type":"","ir_is_new":false,"ir_document_url":"","jir_ir_type":"disclosure_update","footnotes":""},"sector":[],"importance":[],"class_list":["post-140074","ir_release","type-ir_release","status-publish","hentry"],"yoast_head":"\n