Nikkei data breach via a development cloud service

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Made public · 1,830,000 records

What leaked5

Hard to replace

  • Mobile number
  • Home or delivery address
  • Email address

Permanent

  • Date of birth
  • Full name
  • Date of birthabout 150,000 records contain at least one of name, email, address, phone number or date of birth
  • Mobile numberphone number · the notice does not say mobile or landline; about 150,000 records contain at least one of name, email, address, phone number or date of birth
  • Home or delivery addressabout 150,000 records contain at least one of name, email, address, phone number or date of birth
  • Email addressabout 120,000 records
  • Full nameabout 150,000 records contain at least one of name, email, address, phone number or date of birth

To-dos4 · about 50 min in all

  1. Know the scam pattern: calls and texts that cite these leaked detailsabout 5 minfreeLimits harm from: scam calls, phishing messages
  2. Turn on instant transaction alertsabout 5 minHelps you notice: scam calls
  3. Remove your address and phone from public profiles and tighten SNS privacyabout 20 minfreeLimits harm from: visits or contact at home
  4. Use an authenticator app or passkey instead of SMS codesabout 20 minfreeLimits harm from: SMS code theft

What happened next5 events

  1. UndetectedNone on record
  2. Response 5 eventsNo individual notice on record · show events
  3. RemedyNone on record
  4. PenaltyNone on record
  5. DisputesNone on record
  1. Nikkei National Geographic said data of some users of its services may be among the leaked data
  2. Nikkei: no secondary harm, such as misuse of the leaked data, confirmed as of 16 October
  3. Announced that about 1.83 million records had leaked from a cloud service used for system development
  4. Reported to the Personal Information Protection Commission
  5. Invalidated the stolen cloud credentials used in the attack
Company
Nikkei
When it happened
–
Made public
Notice
Leak confirmed
Affected
1,830,000 records · about 150,000 with personal details, about 120,000 of them with an email address; about 1.68 million identifiers only