Sumitomo Mitsui Trust Bank reports 2,351 customer email addresses leaked in third-party breach

PUBT · 1d ago
Sumitomo Mitsui Trust Bank reports 2,351 customer email addresses leaked in third-party breach
  • Sumitomo Mitsui Trust Bank had 2,351 customer email addresses exposed through unauthorized access to Arara's email distribution system used by Fleekdrive.
  • Affected addresses received Fleekdrive emails between July 1, 2026, and 2:22 a.m. on October 30, 2026.
  • Fleekdrive reported the potential breach on November 9, 2026; confirmation followed on November 12.
  • The exposed data contained only email addresses, according to Fleekdrive; the bank warned of potential impersonation emails.
  • The bank is working with Fleekdrive to investigate the cause of the breach and take necessary action.


Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Sumitomo Mitsui Trust Bank Ltd. published the original content used to generate this news brief on November 13, 2026, and is solely responsible for the information contained therein.