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Isetan Mitsukoshi Holdings

Isetan Mitsukoshi Holdings Vendor Cyber Rating & Cyber Score

imhds.co.jp
in
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ISO 27001
SOC 2 Type 1
SOC 2 Type 2
PCI DSS
HIPAA
GDPR

The large sized retailing company group including the biggest department store in Japan. Main stores Isetan: Six stores (Shinjuku Main store, Tachikawa store, Matsudo store, Urawa store, Sagamihara store, Fuchu store) Mitsukoshi: Five stores (Nihombashi Main store, Ginza store, Chiba store, Ebisu Garden Place Store, Tama Center Store) www.isetan.co.jp www.mitsukoshi.co.jp


IMH A.I CyberSecurity Scoring

Incident Details
IMH
Company Information
Website:http://www.imhds.co.jp/english/
Employees number:48
Number of followers:1,132
NAICS:43
Industry Type:Retail
Homepage:imhds.co.jp
Cyber Premium EstimationGet Supply Chain
IMH Risk Score (AI oriented)
Between 700 and 749
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IMHRetail
Updated:
04/04/2026
747/1000
Moderate
Ba
AaaAaABaaBaBCaaCaC
Powered by our proprietary A.I cyber incident model
✖ Insurance prefers TPRM score to calculate premium
IMH Global Score (TPRM)
xxxx
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IMHRetail
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Findings

IMH
IMHModerate
Current Score
747Ba (MODERATE)
01000
1 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
JULY 2026
748Before Incident
JUNE 2026
748Before Incident
MAY 2026
747Before Incident
APRIL 2026
747Before Incident
MARCH 2026
747Before Incident
FEBRUARY 2026
747Before Incident
JANUARY 2026
746Before Incident
DECEMBER 2025
746Before Incident
NOVEMBER 2025
745Before Incident
OCTOBER 2025
745Before Incident
SEPTEMBER 2025
744Before Incident
AUGUST 2025
744Before Incident
AUGUST 2020
768Before Incident
Data Leak
05 Aug 2020 • IMH
Isetan Mitsukoshi Holdings

Isetan Mitsukoshi Data Breach

676After Incident
CRITICAL-92
ISE14323123
Isetan Mitsukoshi Co., Ltd on 5 August 2020, suffered a data breach as a result of unauthorized access. It affected approximately 19,000 customers. Personal information such as name, address, phone number, email address, and date of birth of customers of the Mitsukoshi online store was accessed.
INCIDENT DETAILS -
TYPE
Data Breach
IMPACT
Data Compromised: Personal information (name, address, phone number, email address, date of birth)
DATA BREACH
Type Of Data Compromised: Personal informationPersonally Identifiable Information: Name, Address, Phone Number, Email Address, Date of Birth
REFERENCES
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