HackingGovernmentGovernmentStolen CredentialsTargetedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Marion County Information Services Agency

bd_a933946f24603607 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 27, 2023

Filed

Sep 8, 2023

To disclose

6 weeks

Affected

1state residents only

Confidence

65%

Full breach record for Marion County Information Services Agency →

Marion County Information Services Agency (ISA), a division of the City of Indianapolis and Marion County, disclosed a security incident involving a vendor registration application. A vulnerability existed from January 27, 2022, to July 27, 2023, allowing users to potentially access other users' PII, including names, addresses, phone numbers, tax IDs, and SSNs. No evidence of misuse was found. Notices were sent on September 7, 2023, offering credit monitoring.

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Incident timeline

undetected · 546 days

discovery → filing · 6 weeks / 43 days

Jan 27, 2022

Begins

Jul 27, 2023

Discovered

Sep 8, 2023

Filed

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

Name: The City of Indianapolis and Marion County
norm: the city of indianapolis and marion county

Name: Marion County Information Services Agency
norm: marion county information services agency
Industry: Governmentllm

Discovered: Jul 27, 2023
Breach occurred: Jan 27, 2022 – Jul 27, 2023
Undetected for: 546 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 7, 2023
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Initial access: exploit_public_facing

During the incident: Performed an internal investigation to understand the nature of the vulnerability
Disabled the vulnerability
Implemented recommendations from information technology partners to further improve administrative, technical, and physical safeguards
Provided complimentary credit monitoring and ID theft prevention services through Experian
Changes made: Implemented recommendations from information technology partners to further improve administrative, technical, and physical safeguards
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(43 days from discovery to filing)
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://dojmt.gov/wp-content/uploads/OCP/Consumer-notification-letter-653.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 8, 2023
Raw hash: 5990afc6173e8c7a44b18b729c84d5480af7b1d95d07264a95bafa3dc9815516

Reporting entityThe City of Indianapolis and Marion County

Victim entityMarion County Information Services Agency

Incidentdiscovered Jul 27, 2023

Stated responsePerformed an internal investigation to understand the nature of the vulnerability

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov