MalwareGovernmentTransportation & LogisticsGovernmentRansomwareData ExfiltratedTargetedPIIIdentity (basic)LowContained

Regional Transportation Authority of Northeastern Illinois

bd_b34e58983fd4ef7a · schema v1 · pii pii-v1

Severity

Low

Discovered

Mar 4, 2023

Filed

Aug 14, 2023

To disclose

23 weeks

Affected

Not disclosed

Linked

6 filings

Confidence

65%

Full breach record for Regional Transportation Authority of Northeastern Illinois →

On or about March 4, 2023, the Regional Transportation Authority of Northeastern Illinois (RTA) discovered unauthorized access to its systems by an unknown actor between March 1-3, 2023. The incident involved ransomware activity that rendered systems inaccessible. RTA determined that personal information, including names, was accessed. RTA engaged cyber incident response specialists, notified federal law enforcement, and offered credit monitoring services to affected individuals.

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Vermont clock✗ VT AG >45 bday23 weeks 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

undetected · 3 days

discovery → filing · 23 weeks / 163 days

Mar 1, 2023

Begins

Mar 4, 2023

Discovered

Aug 14, 2023

Filed

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Maine State AGbd_5b4a81b839af13712023-08-14Candidate
Montana State AGbd_64574ce9cefe16412023-08-14Verified by operator
Indiana State AGbd_915363123bc3cc442023-08-14Verified
Massachusetts State AGbd_d01aef59f92905362023-08-14Verified

Show 1 more filing ↓up to 1d gap

New Hampshire State AGbd_c649b7a19c6ad3b62023-08-15 · +1dVerified

Name: Regional Transportation Authority of Northeastern Illinois
norm: regional transportation authority of northeastern illinois

Name: Regional Transportation Authority of Northeastern Illinois
norm: regional transportation authority of northeastern illinois
Industry: GovernmentllmTransportation & Logisticsllm

Discovered: Mar 4, 2023
Breach occurred: Mar 1, 2023 – Mar 3, 2023
Undetected for: 3 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 11, 2023
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid Accounts
Threat actor: External
Regulator citations: Reported this event to federal law enforcement and government regulators

During the incident: Immediately took steps to secure our systems
Launched an investigation with the assistance of cyber incident response specialists
Reported the event to federal law enforcement
Conducted a comprehensive review of the files
Offering [Extra4] months of credit monitoring and identity restoration services at no cost to you through Experian
Changes made: Working to review and further enhance these protections as part of our ongoing commitment to data security
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 23 weeks(163 days from discovery to filing)
Compliance flags: VT AG >45 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 · 6 filings · 6 states

View merged incident ↗

Maine State AGAug 14 · first

Montana State AGAug 14 · first

Indiana State AGAug 14 · first

Massachusetts State AGAug 14 · first

Vermont State AGAug 14 · first · this page

New Hampshire State AG+1d

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/2023-08-14-regional-transportation-authority-northeastern-illinois-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 14, 2023
Raw hash: f57cf84c93f8605264b4c24266688b1d8948ae595708be33c4fac30859c631e1

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityRegional Transportation Authority of Northeastern Illinois

Victim entityRegional Transportation Authority of Northeastern Illinois

Incidentdiscovered Mar 4, 2023

Stated responseImmediately took steps to secure our systems

ComplianceVT AG >45 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov