Askul data breach exposed over 700,000 records after ransomware attack

Securityaffairs.Co •Pierluigi Paganini • December 17, 2025

Askul disclosed that an October RansomHouse ransomware attack compromised over 700,000 records at the Japanese e-commerce and logistics firm. Askul is a Japanese e-commerce and logistics company best known for supplying office products, stationery, IT equipment, and everyday business consumables to companies and consumers. It operates large-scale fulfillment and delivery services across Japan and is […]

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Askul Ransomware Attack Compromises 740,000 Customer Records In October 2025, Askul Corporation, a Japanese e-commerce company, experienced a ransomware attack by the RansomHouse group, resulting in the theft of approximately 740,000 customer records. The company has confirmed the breach and is currently assessing the impact on its operations and customers. 3 sources 66

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Askul data breach exposed over 700,000 records after ransomware attack

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