Reported by 3 outlets
Nikkei discloses breaches of employee Microsoft and Google email accounts
Why this score
- Breadth
- 1.50 / 2.0 · 3 sources
- Authority
- 1.80 / 2.0 · best outlet weight
- Severity
- 0.90 / 5.0 · CVSS + content signals
- Velocity
- 0.00 / 2.0 · updates in 48h
- Pickup speed
- 0.52 / 0.6 · time to second source
- Recency
- × 0.01 temporal multiplier
- Community
- + 0.00 / 1.5 · reddit signal
- Score
- 0.0 / 10 = base × recency + community
Desk analysis
Nikkei disclosed two separate breaches of employee email accounts: a Google Workspace account accessed in late July exposed names and email addresses of 1,646 individuals, and a Microsoft 365 account compromised in September was used to send 9,000 phishing emails. The company changed passwords and contacted recipients. No reader or interviewee data was involved in the first incident; the second targeted staff and interviewees. The attacks have not been attributed.
Timeline
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original reporting
Nikkei discloses breaches of employees’ Microsoft, Google email accounts
bleepingcomputer.com · 7d ago · October 6th, 2026
Over the weekend, Japanese publishing giant Nikkei disclosed that unknown attackers recently breached two employee email accounts and used one to send thousands of phishing emails. In a Sunday statement , the company said an employee's Google Workspace account was accessed in late July, exposing the personal information of employees and business partners. Nikkei changed the account's password after discovering the breach in early August, following a notification from Google. While this incident may have exposed the names and email addresses of 1,646 individuals, Nikkei says the affected data doesn't include information about readers or interviewees. More recently, threat actors accessed another employee's Microsoft 365 account in September and used it to send 9,000 phishing emails targeting Nikkei staff and interviewees. "On September 30th , emails containing links to malicious websites were sent to internal staff and to interviewees with whom several employees had been in contact," the media giant said. "Our company has changed its passwords, and no unauthorized logins have been confirmed since then. We have contacted the recipients individually and requested that they delete the emails." The company also warned affected individuals to watch for suspicious emails that may impersonate Nikkei or its subsidiaries in new phishing attacks. Nikkei has yet to attribute the attacks to a specific threat actor or hacking group and hasn't shared whether the two incidents are connected.
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update from www.bleepingcomputer.com
株式会社日本経済新聞社 (Nikkei) discloses breaches of employees’ Microsoft, Google email accounts https://www. bleepingcomputer.com/news/secu rity/nikk
www.bleepingcomputer.com · 7d ago · October 6th, 2026
株式会社日本経済新聞社 (Nikkei) discloses breaches of employees’ Microsoft, Google email accounts https://www. bleepingcomputer.com/news/secu rity/nikk
via Mastodon https://www.bleepingcomputer.com/news/security/nikkei-discloses-breaches-of-employees-microsoft-google-email-accounts/
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update from japancyberwatch.com
Update on the Nikkei breach: the phishing sent from a hijacked Nikkei Microsoft 365 account on Sep 30 worked on at least one recipient. Nikk
japancyberwatch.com · 7d ago · October 6th, 2026
Update on the Nikkei breach: the phishing sent from a hijacked Nikkei Microsoft 365 account on Sep 30 worked on at least one recipient.
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update from www.infosecurity-magazine.com
Two employee accounts at a major news organization were recently compromised, leading to thousands of scam emails being sent. This serves as
www.infosecurity-magazine.com · 7d ago · October 6th, 2026
Two employee accounts at a major news organization were recently compromised, leading to thousands of scam emails being sent.
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mentioned by www.bleepingcomputer.com
# Nikkei discloses breaches of employees’ # Microsoft , # Google # email accounts https://www. bleepingcomputer.com/news/secu rity/nikkei-di
www.bleepingcomputer.com · 6d ago · October 7th, 2026