Japan firms hit by data breaches and cyberattacks

2026-10-25 · Cybersecurity · Japan

Japanese companies are reporting a wave of cyber incidents. Park24 said about 6.62 million user accounts were compromised in a data breach and will pay ¥3,000 to affected Times Car users. GMO Internet disclosed unauthorized access to servers used for automated FX margin trading and asked the government to adopt "active cyber defense" measures. A separate report said vulnerabilities in Android apps were behind a recent spate of attacks on Japanese firms.

Why it matters：The incidents show how exposed Japanese firms are to cyber risk and are pushing companies to demand a more active government role in defense.

Key points

• Park24 said about 6.62 million accounts were compromised.
• GMO Internet reported unauthorized server access.
• GMO asked the government for 'active cyber defense' measures.

Sources (original reporting)

• The Japan Times
• The Straits Times
• Nikkei Asia
• NHK

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