Komori
Occurring Fact3093Treasure Factory Co.,LTD.Retail

Notice Regarding the Leakage of Personal Information Due to Unauthorized Access to Our Systems

It has been confirmed that a third party exploited a vulnerability in the case management system to unlawfully obtain 746,277 items of customer information, 750 items of information relating to business partners, employees and others, and 1,000 items of device information. External access and the acceptance of applications for on-site purchases, moving services and other services have been suspended and are scheduled to resume by 28 October 2026.

Worth reading
53Recurring
0–100. This measures how worthwhile something is to read, not how good or bad the company is.
Direction
Deterioration
Direction inferred from the company’s description.
Scale
746277
Items (customer information; also 750 items of information relating to business partners, employees and others, and 1,000 items of device information)
Wording
Avoiding a definitive answer
How definitive the wording is.

Personal information breach caused by unauthorized access to our systems

Subject Entity

Treasure Factory Co.,LTD. (the Company)

Target Locations / Products

The case management systems for on-site purchases and the Trefac Moving relocation service

Occurrence20 October 2026 (unauthorized access occurred from the early morning through the morning of the same day)
Same day
Awareness or receipt of notice20 October 2026 (confirmed through an investigation of access logs)
This disclosure10/23/2026
Cause

A third party exploited a vulnerability related to access to the database. The detailed cause and scope of the impact remain under investigation. There is no connection with recently disclosed PHP vulnerabilities.

Company response

Suspended operations

External access to the case management system was suspended at 10:30 on 20 October 2026. Acceptance of applications through the forms for on-site purchases, moving services and other services was suspended at 11:05.

Scheduled resumption date

Scheduled to resume by 28 October 2026

Investigation structure

We are continuing to investigate the detailed cause and scope of the impact in cooperation with an external security specialist. The status of a third-party committee or special investigation committee is Not disclosed.

Measures to prevent recurrence

Measures to address the vulnerability exploited in this incident; enhanced security for login functions; enhanced monitoring of suspicious access; strengthened authentication management, access-rights management and monitoring systems; vulnerability management for systems exposed externally; vulnerability assessments; defenses using WAF and other measures; security measures for applications and databases; and further strengthening of information security management across the Company’s group

Related procedures

Type

Reporting to the Personal Information Protection Commission and consultation with and reporting to the police and other relevant authorities

Court or authority

Personal Information Protection Commission, police and other relevant authorities

Impact on Earnings Forecast

The impact on results is currently under review. If it becomes clear that the incident will have a material impact on results, or if any other matter requiring disclosure arises, we will promptly announce it.

Outlook

After implementing and confirming the necessary security measures, the systems and application forms are scheduled to resume by 28 October 2026. We will proceed with reporting to the Personal Information Protection Commission, consultation with and reporting to the police and other authorities, individual notification to affected parties, preparations to establish a dedicated inquiry desk, an investigation in cooperation with an external security specialist, and the strengthening of our information security management system.

Planned follow-up disclosure

If it becomes clear that the incident will have a material impact on results, or if any other matter requiring disclosure arises, we will promptly announce it. Details of the inquiry desk will be provided promptly on the Company’s website once the necessary arrangements are in place.

Event that occurred
ItemDetails
Event namePersonal information breach caused by unauthorized access to our systems
Date of occurrence20 October 2026 (unauthorized access occurred from the early morning through the morning of the same day)
Date recognized / date notice received20 October 2026 (confirmed through an investigation of access logs)
Subject EntityTreasure Factory Co.,LTD. (the Company)
Target Locations / ProductsThe case management systems for on-site purchases and the Trefac Moving relocation service
CauseA third party exploited a vulnerability related to access to the database. The detailed cause and scope of the impact remain under investigation. There is no connection with recently disclosed PHP vulnerabilities.
Impact on Earnings ForecastThe impact on results is currently under review. If it becomes clear that the incident will have a material impact on results, or if any other matter requiring disclosure arises, we will promptly announce it.
Type of litigation or proceedingReporting to the Personal Information Protection Commission and consultation with and reporting to the police and other relevant authorities
Court or authorityPersonal Information Protection Commission, police and other relevant authorities
Suspended operationsExternal access to the case management system was suspended at 10:30 on 20 October 2026. Acceptance of applications through the forms for on-site purchases, moving services and other services was suspended at 11:05.
Scheduled resumption dateScheduled to resume by 28 October 2026
Investigation structureWe are continuing to investigate the detailed cause and scope of the impact in cooperation with an external security specialist. The status of a third-party committee or special investigation committee is Not disclosed.
Measures to prevent recurrenceMeasures to address the vulnerability exploited in this incident; enhanced security for login functions; enhanced monitoring of suspicious access; strengthened authentication management, access-rights management and monitoring systems; vulnerability management for systems exposed externally; vulnerability assessments; defenses using WAF and other measures; security measures for applications and databases; and further strengthening of information security management across the Company’s group
OutlookAfter implementing and confirming the necessary security measures, the systems and application forms are scheduled to resume by 28 October 2026. We will proceed with reporting to the Personal Information Protection Commission, consultation with and reporting to the police and other authorities, individual notification to affected parties, preparations to establish a dedicated inquiry desk, an investigation in cooperation with an external security specialist, and the strengthening of our information security management system.
Planned follow-up disclosureIf it becomes clear that the incident will have a material impact on results, or if any other matter requiring disclosure arises, we will promptly announce it. Details of the inquiry desk will be provided promptly on the Company’s website once the necessary arrangements are in place.
Items this document does not state (10)
Amount of Impact on Business PerformanceAccounting period in which recognizedPlaintiffDefendantDate of filing / date of actionClaim amount / surcharge amountAmount of receivables at risk of non-collection or delayed collectionDirectors' and officers' liabilityVoting rights ownership percentage before the changeVoting rights ownership percentage after the change

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

Based on the investigation to date, we believe that the cause was the exploitation by a third party of a vulnerability related to access to the database.

How to read this page

This is not the documentKomori reads the disclosure the company filed and writes this summary. Figures are as stated by the company and are not audited.
Weight is not a verdictIt measures how much this changes what the company had already told the market. It is not a view on the shares.
Corrections happenIf the company reissues this disclosure, the page is rebuilt from the corrected version and the revision number moves up.
Notice Regarding the Leakage of Personal Information Due to Unauthorized Access to Our Systems | Treasure Factory Co.,LTD. (3093) timely disclosure | Komori