Mille Lacs Health System — August 2019 breach

Clustered 4 filings across 4 jurisdictions · filing window May 8, 2020 → May 13, 2020. View entity profile → Other incidents for this victim →

⚠ 1 cross-filing discrepancy →Merge100%

Determination

Confirmed

Members

4 filings

States

Affected · reported

10,630

First → last filing

May 8, 2020 → May 13, 2020

Merge confidence

100%

incident inc_d112b1adc12043da · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 4 regulatory filings. The filings describe social engineering. Intrusion Aug 26, 2019–Jan 7, 2020, discovered Nov 14, 2019 — the first regulatory filing landed 176 days later. 10,630 individuals reported across the linked filings. Data reported: Government ID, PHI, Health (basic), and 1 more. Notifications rolled out on a 5-day schedule across 4 filings beginning May 8, 2020. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental

Notification delay

176days

Discovered → first regulatory filing

Discovery variance

0days

Range of discovered_at dates across filings

Filing span

5days

Time between earliest and latest filing

Not recorded for this incident

Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster.

Regulatory clocksMassachusetts✓ MA credit monitoring dueHIPAA✓ HHS notifiedFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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