HackingOtherVulnerability ExploitData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Cedar Falls Utilities

bd_2398484eb6a8adbf · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 14, 2020

Filed

Oct 14, 2020

To disclose

9 weeks

Affected

1state residents only

Linked

3 filings

Confidence

64%

Full breach record for Cedar Falls Utilities →

Cedar Falls Utilities notified customers of a data breach involving a security vulnerability on a third-party maintained website. The incident potentially exposed names, addresses, Social Security numbers, and driver's license numbers of customers who used an online form between 2015 and 2020. The vulnerability was fixed within two hours of discovery on August 14, 2020. CFU offered 12 months of credit monitoring.

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Incident timeline

undetected · 2052 days

discovery → filing · 9 weeks / 61 days

Jan 1, 2015

Begins

Aug 14, 2020

Discovered

Oct 14, 2020

Filed

vs. sector median

+1 wks slower

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

Massachusetts State AGbd_9ad21e29c689a4702020-09-14 · +30dCandidate
Indiana State AGbd_f34229b7ce4cbc472020-09-14 · +30dVerified

Name: Cedar Falls Utilities
norm: cedar falls utilities
Domain: cfu.net

Name: Cedar Falls Utilities
norm: cedar falls utilities
Domain: cfu.net
Industry: Otherllm

Discovered: Aug 14, 2020
Breach occurred: Jan 1, 2015 – Aug 14, 2020
Undetected for: 2,052 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 14, 2020
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: External
Initial access: exploit_public_facing

During the incident: Launched an investigation
Fixed the issue within two hours of being discovered
Worked with the third-party vendor to identify those individuals whose information may have been affected
Providing you with access to twelve months of complimentary credit monitoring and identity protection services through TransUnion
Changes made: Reviewing our policies and procedures related to the handling of and access to personal information
Evaluating its relationship with the third-party provider involved in the incident
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(61 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Massachusetts State AGSep 14 · first

Indiana State AGSep 14 · first

Montana State AG+30d · this page

Pattern: first filing Sep 14 (MA), last Oct 14 (MT) — a 30-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/Cedar-Falls-Notice.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 14, 2020
Raw hash: 4318c5e495e6e698ab24629bb4ed511dc05c6b7f8e93cc7c84e48e466931eee1

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityCedar Falls Utilities

Victim entityCedar Falls Utilities

Incidentdiscovered Aug 14, 2020

Stated responseLaunched an investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov