Nikkei
Oct 2026 · Graded Attested · Media and Entertainment · Beyond the filings
Incident summary
NikkeiOct 2026
Not yet quantified
AAttestedAttackers logged into the cloud service Nikkei uses for system development on the morning of October 7 with previously compromised credentials; whose, and how they were lost, goes unsaid. Nikkei puts the haul at roughly 1.83 million records, 150,000 of them carrying names, addresses, phone numbers, and birthdates. A development environment was holding real people behind a single reusable key. And this is Nikkei's third substantial incident disclosed in the last month.
Media and Entertainment
Nikkei discloses third data breach in a month, 1.8M records exposed
Initial attack type compromised credentials confirmed · Impact data theft confirmed
About this record
This incident is beyond the filings: attributed to a company statement, a regulator or court record, or a news report, and graded Attested or Inferred. Every figure links to the source it was read from; if we have read one wrong, tell us at info@hackerinahoodie.com. This index never sums figures across incidents. See the methodology.