At a glance
Organisation
Daiwa Securities
Kind
Breach or incident
Sector
Sector not stated
Severity
Medium
Disclosed
Oct 2026
Indexed
5 Oct 2026
Records
110,000, as stated in the disclosure
Source
Summary
Takashi Nakamichi and Ryo Horiuchi report that Daiwa Securities, Japan’s second-largest brokerage and investment banking firm, is responding to a breach at one of its vendors. Daiwa Securities Group said informatio
This record says what was disclosed, when and by whom. It does not say that any person or firm was affected.
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