Askul, a Japanese e-commerce and logistics company, faced a significant data breach due to a ransomware attack by the RansomHouse group in October 2025. The attackers compromised over 700,000 records, including sensitive information related to customers, business partners, and employees. The breach began when cybercriminals accessed Askul's systems using stolen credentials and later deployed file-encrypting malware after deleting backup files. This attack led to extensive disruptions in the company’s logistics operations, which are heavily automated, forcing them to shut down services until early December. On November 10 and December 2, the RansomHouse group leaked data they claimed to have stolen, indicating that Askul did not pay the ransom. They reported stealing more than 1 terabyte of data. The company confirmed that around 590,000 records connected to business services and 132,000 consumer service records were compromised, alongside thousands of records involving business partners and executives. The incident illustrates the growing threat of ransomware attacks and the potential for serious operational impacts on businesses that fall victim to such breaches.