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Nikkei

Security incidents tagged Nikkei. Newest first.

1 Nikkei incident in the last 12 months

Critical 4 · High 3 · Med 2 · Low 1 · Update ½LessMore
Incidents
1
Live
1
Patched
1
Days without an incident
1
Longest quiet run: 4 days (Oct 12–Oct 15)
  • Patched

    Nikkei breach: stolen credentials expose 1.83M personal-information records from a development cloud

    Japanese media group Nikkei Inc. (owner of the Financial Times) says attackers used stolen credentials, obtained by unknown means, to access a cloud service it uses for system development in the early hours to morning of October 7, 2026, and personal information stored there leaked. As of October 16, about 1.83 million items had leaked: about 150,000 contain a name, email address, postal address, phone number or date of birth (about 120,000 include an email address), and about 1.68 million contain only information that cannot identify a person. No credit card data. Nikkei disabled the credentials, reported to Japan's Personal Information Protection Commission on October 11 and says it found no misuse so far. On October 21 Nikkei BP said about 800,000 of the leaked items belong to users of its services. BleepingComputer counts this as Nikkei's third disclosed incident in about a month.

    Nikkei Inc. development cloud service (customer data of Nikkei and group services such as Nikkei BP)Since Oct 7, 2026

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