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Confirmed14 records · 10 statesUnverified claimConfirmedEnforcedalphvhigh sensitivity

Merged incident · 14 records

MGM RESORTS INTERNATIONAL — March 2019 breach

Clustered 14 records across 11 jurisdictions: 13 filings and 1 leak-site claim · filing window Sep 13, 2023 → Dec 5, 2023. View entity profile → Other incidents for this victim →

⚠ 2 cross-filing discrepancies →Merge100%

Determination

Confirmed

Members

14 records

States

Affected · reported

1,248,491

First → last filing

Sep 13, 2023 → Dec 5, 2023

Merge confidence

100%

incident inc_3b7cc1809a734581 · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 13 regulatory filings and 1 unverified claim. The filings describe unauthorized access. Intrusion Mar 1, 2019–Sep 12, 2023, discovered Sep 8, 2023 — the first regulatory filing landed 5 days later. 1,248,491 individuals reported across the linked filings. Data reported: Government ID, Identity (basic), and PII. Notifications rolled out on a 83-day schedule across 13 filings beginning Sep 13, 2023. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental

Notification delay

5days

Discovered → first regulatory filing

Discovery variance

21days

Range of discovered_at dates across filings

Leak precedence

Noneclaim trailed by 1d

Days between the first sighting of the earliest-seen leak-site claim and the first regulatory filing. Measured from when the aggregator first saw the post, not the crew's own (often earlier) date. Positive = the claim came first (public exposure before disclosure). Negative = the claim trailed the filing, so there was no pre-disclosure leak. Counts regulatory filings only — press coverage is not a regulatory disclosure.

SEC filing delay

1days

Materiality determination to SEC 8-K filing

Filing span

83days

Time between earliest and latest filing

Not recorded for this incident

Materiality delta

Regulatory clocksOregon✓ OR AG ≤45dMassachusetts✓ MA credit monitoring dueMaine✓ ME AG ≤30d · 27dWashington✓ WA AG ≤30dSouth Carolina✓ SC CRA notice dueFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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