HackingOtherTargetedIdentity (basic)Government IDMediumContained

The Arc of Southern Maryland

bd_547bcbaaf5c1e348 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 13, 2024

Filed

Feb 19, 2025

To disclose

10 weeks

Affected

5state residents only

Confidence

66%

The Arc of Southern Maryland notified the Maryland Attorney General of a data event affecting approximately 5 Maryland residents. Unauthorized access to files containing names and Social Security numbers occurred around December 9, 2024. The Arc engaged cybersecurity specialists, notified affected individuals on February 18, 2025, and provided 12 months of credit monitoring services.

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Maryland clock⏱ MD AG >30d10 weeks discovery → filing

Incident timeline

undetected · 4 days

discovery → filing · 10 weeks / 68 days

Dec 9, 2024

Begins

Dec 13, 2024

Discovered

Feb 19, 2025

Filed

vs. sector median

+2 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed5 affectedView incident

Name: The Arc of Southern Maryland
norm: the arc of southern maryland
Domain: thearcofal.org

Name: The Arc of Southern Maryland
norm: the arc of southern maryland
Domain: thearcofal.org
Industry: Otherllm

Discovered: Dec 13, 2024
Breach occurred: Dec 9, 2024
Undetected for: 4 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 18, 2025
Affected individuals: 5state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified Maryland Attorney General

During the incident: Engaged cybersecurity specialists under privilege to assist with the process
Undertook a comprehensive review of those files
Provided written notice of this incident to approximately five (5) Maryland residents
Providing access to credit monitoring services for twelve (12) months, through IDX, to individuals whose personal information was potentially affected by this incident, at no cost to these individuals
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Providing individuals with information on how to place a fraud alert and security freeze on one’s credit file
Providing individuals with contact details for the national consumer reporting agencies
Providing individuals with information on how to obtain a free credit report
Encouraging individuals to contact the Federal Trade Commission, their state Attorney General, and law enforcement to report attempted or actual identity theft and fraud
Changes made: Working to implement additional safeguards and training to its employees
Implemented measures to enhance security and minimize the risk of a similar incident occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(68 days from discovery to filing)
Compliance flags: MD AG >30d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

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-376382.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 19, 2025
Raw hash: 359c2a6b37d8bd4d37d9720fb6f99b614547ea4c15f87fc8d03fb923462a7d9f

Reporting entityThe Arc of Southern Maryland

Victim entityThe Arc of Southern Maryland

Incidentdiscovered Dec 13, 2024

Stated responseEngaged cybersecurity specialists under privilege to assist with the process

ComplianceMD AG >30d

Extraction provenanceno artifact recorded

Source provenanceoag.maryland.gov