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● Covered by 1 source · 1 reportMedium impact

Japanese companies report cyber breaches affecting millions of customers

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Key points

  • Aflac Japan exposed data of 4.38 million policyholders.
  • Sapporo Holdings suspects unauthorized access at two subsidiaries.
  • Nidec disclosed a ransomware breach at its Taiwanese subsidiary.

Aflac Japan's Breach Details

Aflac Life Insurance Japan reported that hackers compromised its customer portal affecting approximately 4.38 million policyholders. The breached data included names, addresses, phone numbers, and premium payment account information for around 230,000 customers.

Sapporo Holdings' Incident

Sapporo Holdings has reported unauthorized access affecting its subsidiaries Pokka in Singapore and Sleeman Breweries in Canada. Initial reports pointed to suspicious network activity, prompting the company to shut down affected systems while investigating potential data theft.

Other Affected Companies

Nidec disclosed a ransomware breach impacting part of its Taiwanese subsidiary, Nidec Chaun Choung Technology. The extent of the breach and any data compromised have not been fully detailed.

Context of Cybersecurity in Japan

These breaches come amidst a backdrop of increased cyber security incidents in Japan, including previous attacks that targeted the brewing sector and compromised significant customer data. The situation underlines the pressing need for enhanced cybersecurity measures across various industries.

✨ This summary was generated by AI from the outlets' reporting listed below. It is not independently verified and may contain errors — check the original sources. How BrevFeed works →

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Reporting from

Several major Japanese companies, including Aflac Japan, have reported cyber breaches that exposed personal data of millions and disrupted operations. These incidents require further investigation and highlight ongoing cybersecurity challenges faced by the industry.