Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

PlainsCapital Bank

Disclosed Jul 3, 2023Confirmed

Official notice

Core banking vendor's MOVEit breach exposes nearly all PlainsCapital customers

Hilltop Holdings said the core operating system vendor of PlainsCapital Bank was breached through MOVEit, and an unauthorized party likely obtained information on substantially all of the bank's customers, including Social Security and account numbers.

What is known

People affectedNot stated in the sources we have
DisclosedJul 3, 2023
DiscoveredJun 27, 2023
HappenedMay 27, 2023
AttackVendor breach
Data exposedNamesSocial Security numbersFinancial
SectorFinance · US
StatusConfirmed
Part ofMoveit (2023)

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: PlainsCapital Bank
Regulatoroag.ca.gov
California AG breach notice: PlainsCapital Bank
SEC filingsec.gov
Hilltop Holdings Form 8-K (July 3, 2023)

Notices filed

TotalJul 3, 2023
ResearchCount not stated
Residents of CAJul 14, 2023
California AGCount not stated

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Other breaches at PlainsCapital Bank

Breach, details not statedExposed names, payment cards, financial details, passwords and names. Reported to the Maine AG.FinanceUSJun 29, 2018
History of this record
campaign2026-09-25
empty to moveit-2023by seedSource
attack2026-09-25
unknown to third-partyby seedSource
data_types2026-09-25
[] to ["names","ssn","financial"]by seedSource
disclosed2026-09-25
2023-07-14 to 2023-07-03by seedSource
discovered2026-09-25
empty to 2023-06-27by seedSource
summary2026-09-25
empty to Hilltop Holdings said the core operating system vendor of PlainsCapital Bank was breached through MOVEit, and an unauthorized party likely obtained information on substantially all of the bank's customers, including Social Security and accoby seedSource
title2026-09-25
empty to Core banking vendor's MOVEit breach exposes nearly all PlainsCapital customersby seedSource
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.

Everything about PlainsCapital Bank