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Daiwa Securities

Disclosed Oct 5, 20262 days agoUnverified

Daiwa Securities says info on 110,000 clients may have been leaked in vendor incident

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 information on as many as 110,000 clients may have been stolen after the servers of an external vendor were hacked. Japan’s second-largest brokerage received a... Source

What is known

People affectedNot stated in the sources we have
DisclosedOct 5, 2026
AttackVendor breach
Data exposedNot stated
SectorFinance
StatusUnverified: not yet confirmed by an official notice, a filing or the organization

Sources

Notices filed

WhereFiledPeople
Security newspressOct 5
History of this record
  • 2026-10-07 · added · daily source

First seen 2026-10-07 (Security news). Record counts are as reported. Not legal advice.

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