Sony ISP subsidiary data breach affects 2.5 million customers in Japan

• Sony Network Communications disclosed a data breach affecting approximately 2.5 million ISP customers and former users.
• Exposed data included personal details, and some email service users also lost their email passwords.
• The company contained the intrusion, notified authorities, and warned customers about potential phishing and fraud risks.
• The breach occurred in Japan, marking another major cyberattack in the country.
• Sony's subsidiary, a part of the Japanese tech giant, was the target of the cyberattack.