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Confirmed breach

Nikkei data breach

JPJapan

Bursada Bugün reported a data breach at Nikkei (Japan) on 16 October 2026, and it has been confirmed. It affected 1,830,000 personal information. Exposed: Personal information.

Status

Confirmed breach

People affected

1,830,000 personal information

Reported

16 October 2026

What was exposed

• Personal information

Sources

• News reportBursada BugünJapon medya devi Nikkei'de veri ihlali: 1,83 milyon kişisel bilgi sızdırıldı

Read our story about this breach →

If Nikkei had your data

1. Look for Nikkei’s own notice or letter: it should say what of yours was involved. Keep it.
2. Expect scams that use your details: calls, texts or emails pretending to be Nikkei, your bank or the police. Never give codes or passwords, never approve a sign-in you did not start, never move money.

• What to do after a data breach →

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From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Found a mistake? Tell us and we correct it.