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Nikkei Data Breach Exposes Info of 17,000 Individuals

11/5/2025

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Summary

Story summary

Nikkei Inc. disclosed a data breach after malware infected an employee's computer, compromising its Slack.
The breach exposed personal information of over 17,000 individuals, including full names and email addresses.
Nikkei detected unauthorized access in September and began immediate containment measures, including password resets.
Nikkei confirmed that no sensitive journalistic sources were leaked.
Mayank Kumar described the attack as a modern example of data exfiltration and emphasized evolving detection methods.

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Story summary

Nikkei Inc. disclosed a data breach after malware infected an employee's computer, compromising its Slack.
The breach exposed personal information of over 17,000 individuals, including full names and email addresses.
Nikkei detected unauthorized access in September and began immediate containment measures, including password resets.
Nikkei confirmed that no sensitive journalistic sources were leaked.
Mayank Kumar described the attack as a modern example of data exfiltration and emphasized evolving detection methods.