HackingFinancial ServicesFinanceStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumActive

KeyBank National Association

bd_8b8a0ab2a1be22e7 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 12, 2023

Filed

Jun 2, 2023

To disclose

21 days

Affected

Not disclosed

Linked

3 filings

Confidence

68%

Full breach record for KeyBank National Association →13 incidents on file

KeyBank notified Vermont consumers of a security incident occurring on or about May 12, 2023, where unauthorized actors used personal information to create online banking profiles. Affected data included names, SSNs, financial account numbers, and transaction history. KeyBank engaged law enforcement and forensic experts, and offered two years of Equifax credit monitoring.

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Vermont clock⏱ VT AG >14 bday21 days discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

discovery → filing · 21 days

May 12, 2023

Discovered

Jun 2, 2023

Filed

vs. sector median

5 wks faster

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Maine State AGbd_8a85957c78f038e62023-06-07 · +5dCandidate
Massachusetts State AGbd_c7d87bae71055fd92023-06-07 · +5dVerified

Name: KeyBank National Association
norm: keybank national

Name: KeyBank National Association
norm: keybank national
Industry: Financial Servicesllm

Discovered: May 12, 2023
Materiality determined: —
Notification sent: Jun 2, 2023
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Initial access: valid_credentials

During the incident: Preventing further unauthorized access to your account
Contacting law enforcement
Engaging outside experts to help remediate and ensure the ongoing security of the affected client accounts
Changes made: Offering a complimentary two-year membership to Equifax Complete Premier
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 21 days(21 days from discovery to filing)
Compliance flags: VT AG >14 bday
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Vermont State AGJun 2 · first · this page

Maine State AG+5d

Massachusetts State AG+5d

Pattern: first filing Jun 2 (VT), last Jun 7 (MA) — a 5-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://ago.vermont.gov/document/2023-06-02-key-bank-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 2, 2023
Raw hash: 0ac057b505f6f0d2a1106efda02c418427691080d4c0123df3a9e65e7ab8dcb8

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityKeyBank National Association

Victim entityKeyBank National Association

Incidentdiscovered May 12, 2023

Stated responsePreventing further unauthorized access to your account

ComplianceVT AG >14 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov