HackingFinancial ServicesFinanceCustomer Data InvolvedPIIIdentity (basic)Government IDMediumResolved

Heritage Bank of the Ozarks

bd_efc36536eb104699 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

May 19, 2026

To disclose

—

Affected

1scope not determined

Confidence

88%

Full breach record for Heritage Bank of the Ozarks →2 incidents on file

Heritage Bank of the Ozarks (HBO), a Missouri-based bank, notified the Maryland Attorney General that an unauthorized person accessed one employee email account between October 28-29, 2024. Review of the mailbox identified the name and Social Security number of one Maryland resident in messages or attachments. HBO secured the account, is offering IDX credit monitoring and identity theft restoration, and is enhancing email environment security. One Maryland resident was notified on January 6, 2025.

J jump to incidentP pin to compareR raw source

Incident timeline

Oct 28, 2024

Begins

May 19, 2026

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 affectedView incident

Name: Heritage Bank of the Ozarks
norm: heritage bank of the ozarks

Name: Heritage Bank of the Ozarks
norm: heritage bank of the ozarks
Industry: Financial Servicesllm

Discovered: —
Breach occurred: Oct 28, 2024 – Oct 29, 2024
Materiality determined: —
Notification sent: Jan 6, 2025
Affected individuals: 1scope not determined
Data types: PIIIdentity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: External
Regulator citations: Notified Maryland Office of the Attorney General

During the incident: Immediately took steps to secure the account
Began an investigation
Commenced mailing notification to the Maryland resident via U.S. First-Class mail
Offering complimentary credit monitoring, fraud consultation, and identity theft restoration services through IDX
Changes made: Has taken, and will continue to take, steps to enhance the security of its email environment
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://oag.maryland.gov/resources-info/SBN%20Documents/2025/ITU-376122.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 19, 2026
Raw hash: 0443da7e7e2d8e03c0b64a0d4540522c557c62192422cfe12b88fae543d278b3

Reporting entityHeritage Bank of the Ozarks

Victim entityHeritage Bank of the Ozarks

IncidentUnauthorized Access

Stated responseImmediately took steps to secure the account

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.maryland.gov