MalwareOtherRansomwareCapture Stored DataData ExfiltratedData EncryptedRansom DemandedPIIIdentity (basic)LowContained

GFL Environmental Inc.

bd_78a3d7326c3af22e · schema v1 · pii pii-v1

Severity

Low

Discovered

Oct 8, 2021

Filed

Dec 22, 2021

To disclose

11 weeks

Affected

2state residents only

Linked

5 filings

Confidence

64%

Full breach record for GFL Environmental Inc. →

GFL Environmental Inc. notified Montana residents of a ransomware attack discovered on October 8, 2021. The threat actor accessed systems between Oct 7-8, 2021, copying limited personal information (names) before deploying ransomware. GFL engaged cybersecurity firms and law enforcement, enhanced security measures, and offered 12 months of Equifax credit monitoring.

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Incident timeline

undetected · 1 days

discovery → filing · 11 weeks / 75 days

Oct 7, 2021

Begins

Oct 8, 2021

Discovered

Dec 22, 2021

Filed

vs. sector median

+3 wks slower

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Indiana State AGbd_14bea0a4b3ac1d192021-12-22Verified
Massachusetts State AGbd_12e377a11c24af342021-12-21 · +1dVerified
Maine State AGbd_a898c78936d4439d2021-12-21 · +1dVerified
Illinois State AGbd_c94a5e12557d56c72021-01-01 · +355dCandidate

Name: GFL Environmental Inc.
norm: gfl environmental
Domain: gflenv.com

Name: GFL Environmental Inc.
norm: gfl environmental
Domain: gflenv.com
Industry: Otherllm

Discovered: Oct 8, 2021
Breach occurred: Oct 7, 2021 – Oct 8, 2021
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: Dec 22, 2021
Affected individuals: 2state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: reported the incident to, and is working closely with the appropriate law enforcement authorities

During the incident: Retained leading cybersecurity firms to assist in responding and help conduct a thorough investigation
Reported the incident to, and is working closely with the appropriate law enforcement authorities
Implemented numerous additional measures designed to enhance the security of our network, systems, and data
Offering a complimentary 12 month membership of Equifax CompleteTM Premier
Changes made: Implemented numerous additional measures designed to enhance the security of our network, systems, and data
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 11 weeks(75 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Illinois State AGJan 1 · first

Massachusetts State AG+354d

Maine State AG+354d

Indiana State AG+355d

Montana State AG+355d · this page

Pattern: first filing Jan 1 (IL), last Dec 22 (MT) — a 355-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://dojmt.gov/wp-content/uploads/OCP/Consumer-Notification-Letter-184.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 22, 2021
Raw hash: ec4c4fb8908c50ba3b85bc274c45ce3e1db94cab45f3a31e96c88b4962c8f6ea

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityGFL Environmental Inc.

Victim entityGFL Environmental Inc.

Incidentdiscovered Oct 8, 2021

Stated responseRetained leading cybersecurity firms to assist in responding and help conduct a thorough investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov