Social EngineeringTelecom & MediaInformationPhishingBECRansom DemandedTargetedEmployee Data InvolvedIdentity (basic)Government IDFinancialMediumActive

GCI Communication Corp

bd_12834049b160f42a · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 3, 2016

Filed

Mar 7, 2016

To disclose

4 days

Affected

4state residents only

Linked

2 filings

Confidence

65%

GCI Communication Corp disclosed a phishing attack in February 2016 where employees' W-2 forms were sent to an impersonator. The breach affected current and former employees of GCI and affiliates, exposing SSNs, names, addresses, and income data. GCI notified the FBI and provided two years of credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 8 days

discovery → filing · 4 days

Feb 24, 2016

Begins

Mar 3, 2016

Discovered

Mar 7, 2016

Filed

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Massachusetts State AGbd_9bdf517f422d5b862016-03-10 · +3dVerified

Name: GCI Communication Corp
norm: gci communication
Domain: gcioutdoor.com

Name: GCI Communication Corp
norm: gci communication
Domain: gcioutdoor.com
Industry: Telecom & Mediallm

Discovered: Mar 3, 2016
Breach occurred: Feb 24, 2016
Undetected for: 8 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 6, 2016
Affected individuals: 4state-resident count only
Data types: Identity (basic)Government IDFinancial
Data elements: Social Security number
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Reported incident to law enforcement (FBI)
Initial access: phishing_link

During the incident: Interviewed relevant GCI employees
Collected and preserved electronic evidence
Notified the FBI
Engaged AllClear ID to provide credit monitoring and identity theft services
Changes made: Strengthen the protection of employee information
Launch an anti-phishing training program
Reinforce overall privacy and security posture
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 days(4 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Montana State AGMar 7 · first · this page

Massachusetts State AG+3d

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/GCI.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 7, 2016
Raw hash: 67f4797a38e7b6df4644a6d321215c83c538fbbb8343838e61dec666a0e2710a

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityGCI Communication Corp

Victim entityGCI Communication Corp

Incidentdiscovered Mar 3, 2016

Stated responseInterviewed relevant GCI employees

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov