Nikkei — Cyber Attacks, Breaches & Threat Activity

Threat entity extracted from intelligence sources

Frequency
10
occurrences
First Seen
November 4, 2025
Last Seen
December 11, 2025

Related Threat Clusters

  • Nikkei Data Breach Exposes 17,000 Slack Accounts

    Nikkei, a major Japanese media corporation, reported a data breach affecting over 17,000 employees and business partners. The breach occurred due to malware that compromised an employee's device, allowing attackers to…

    4 articles · Updated November 6, 2025
  • Nikkei Reports Data Breach Affecting 17,000 Due to Slack Account Hack

    Nikkei, a Japanese media company, reported that hackers accessed employee Slack accounts, compromising sensitive information. The breach involved malware that stole Slack credentials from an employee's personal…

    2 articles · Updated November 5, 2025
  • Phishing Attacks on Corporate Users Increase 400% Year-Over-Year

    SpyCloud reports a 400% increase in phishing attacks targeting corporate users, with 40% of phished records containing business email addresses. This surge highlights the growing reliance of cybercriminals on phishing…

    7 articles · Updated December 4, 2025
  • Cyberattacks Target Major Companies, Highlighting Supply Chain Risks

    Recent cyberattacks on prominent companies such as Nikkei and Jaguar Land Rover demonstrate that organizations of all sizes are vulnerable to cyber threats. The attack on Jaguar Land Rover resulted in a five-week…

    1 article · Updated December 11, 2025
  • Nikkei Data Breach Exposes Personal Information of Over 17,000 Individuals

    Nikkei Inc., a major Japanese media conglomerate, reported a data breach affecting over 17,000 employees and business partners. The breach was caused by malware that compromised an employee's device, allowing attackers…

    3 articles · Updated November 6, 2025
  • Nikkei Data Breach Exposes 17,000 Slack Accounts

    Nikkei Inc., a major Japanese media company, reported a data breach affecting over 17,000 employees and business partners. The breach occurred due to malware that compromised an employee's personal computer, allowing…

    11 articles · Updated November 6, 2025

Recent Intelligence Reports

  • Complacency in supply chain cybersecurity could be your biggest risk — Computing · December 11, 2025
  • SpyCloud Data Shows Corporate Users 3x More Likely to Be Targeted by Phishing Than by Malware — Csoonline · December 5, 2025
  • SpyCloud Data Shows Corporate Users 3x More Likely to Be Targeted by Phishing Than by Malware — Markets.Businessinsider · December 4, 2025
  • Nikkei’s Slack breach leaks sensitive data from more than 17,000 users — Csoonline · November 6, 2025
  • Malware-pwned laptop gifts cybercriminals Nikkei's Slack — Theregister · November 6, 2025
  • Malware-pwned laptop gifts cybercriminals Nikkei's Slack — Theregister · November 6, 2025
  • Hackers Steal Personal Data and 17K Slack Messages in Nikkei Data Breach — Feeds.Feedburner · November 5, 2025
  • Nikkei Says 17,000 Impacted by Data Breach Stemming From Slack Account Hack — Databreaches · November 5, 2025

CVSS v3.1 Breakdown