HackingFinancial ServicesTechnologyFinanceVulnerability ExploitCapture Stored DataData ExfiltratedCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDFinancial accountCriticalContained

EQUIFAX INC.

bd_20e4e8963ad56aa0 · schema v1 · pii pii-v1

Severity

Critical

Discovered

Jul 29, 2017

Filed

Sep 12, 2017

To disclose

6 weeks

Affected · nationwide

2,500,0002,419,033 in this filing

Linked

7 filings

Confidence

64%

Full breach record for EQUIFAX INC. →12 incidents on file

Equifax filed a supplemental breach notice in South Carolina on October 13, 2017, covering 2.5 million additional U.S. consumers. The breach involved unauthorized access via exploitation of a web application vulnerability between mid-May and July 2017. Data exposed included names, SSNs, birth dates, addresses, and some credit card numbers. Equifax engaged forensic investigators and notified law enforcement.

J jump to incidentP pin to compareR raw source

South Carolina clock✓ SC CRA notice due6 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 · 75 days

discovery → filing · 6 weeks / 45 days

May 15, 2017

Begins

Jul 29, 2017

Discovered

Sep 12, 2017

Filed

vs. sector median

2 wks faster

This filing is one of 7 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (6) · sorted by filing gap

California State AGbd_278155640602f8682017-09-07 · +5dVerified
Washington State AGbd_958fcf9ef068490f2017-09-07 · +5dCandidate
New Hampshire State AGbd_c7a263041aff38052017-09-07 · +5dCandidate
Oregon State AGbd_d60b910cf11a2f9c2017-09-07 · +5dVerified

Show 2 more filings ↓up to 30d gap

Massachusetts State AGbd_e7e140ebd326c5762017-09-07 · +5dVerified
New Hampshire State AGbd_bf00e329b87159ef2017-10-12 · +30dVerified

Name: EQUIFAX INC.
norm: equifax
Domain: equifax.com

Name: EQUIFAX INC.
norm: equifax
Domain: equifax.com
Industry: Financial ServicesllmTechnologyllm

Discovered: Jul 29, 2017
Breach occurred: May 15, 2017 – Jul 29, 2017
Undetected for: 75 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 13, 2017
Affected individuals: 2,500,000state + nationwide
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: reported the criminal access to law enforcement
Initial access: exploit_public_facing

During the incident: Acted immediately to stop the intrusion
Engaged a leading, independent cybersecurity firm which has been conducting a comprehensive forensic review
Reported the criminal access to law enforcement
Changes made: Engaged the cybersecurity firm to conduct an assessment and provide recommendations on steps that can be taken to help prevent this type of incident from happening again
Established a dedicated website, www.equifaxsecurity2017.com to help consumers
Offering free identity theft protection and credit file monitoring to all U.S. consumers
Offering a new service allowing all consumers the option of controlling access to their personal credit data
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(45 days from discovery to filing)
Compliance flags: SC CRA notice due
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 · 7 filings · 6 states

View merged incident ↗

California State AGSep 7 · first

Washington State AGSep 7 · first

New Hampshire State AGSep 7 · first

Oregon State AGSep 7 · first

Massachusetts State AGSep 7 · first

South Carolina State AG+5d · this page

New Hampshire State AG+35d

Pattern: first filing Sep 7 (CA), last Oct 12 (NH) — a 35-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://consumer.sc.gov/sites/consumer/files/Documents/Business%20Resources%20Laws/Related%20Laws/Breaches/2017/Equifax.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 12, 2017
Raw hash: 99c53622d485f9b083cf82c914ed6ad349d1c14bf81bd4742e6968b017c615cc

Linked disclosures

Regulatory filings (6) · sorted by filing gap

Reporting entityEQUIFAX INC.

Victim entityEQUIFAX INC.

Incidentdiscovered Jul 29, 2017

Stated responseActed immediately to stop the intrusion

ComplianceSC CRA notice due

Extraction provenanceno artifact recorded

Source provenanceconsumer.sc.gov