Major League Baseball Players Benefit Plan — November 2021 breach

Clustered 6 filings across 6 jurisdictions · filing window Mar 11, 2022 → Mar 22, 2022. View entity profile → Other incidents for this victim →

⚠ 2 cross-filing discrepancies →Merge100%

Determination

Confirmed

Members

6 filings

States

Affected · reported

42,384

First → last filing

Mar 11, 2022 → Mar 22, 2022

Merge confidence

100%

incident inc_b3063799014549ef · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 6 regulatory filings. The filings describe unauthorized access. Intrusion Nov 10, 2021–Nov 11, 2021, discovered Nov 12, 2021 — the first regulatory filing landed 119 days later (flagged late). 42,384 individuals reported across the linked filings. Data reported: Government ID, PHI, Health (basic), and 4 more. Notifications rolled out on a 11-day schedule across 6 filings beginning Mar 11, 2022. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental

Notification delay

119days

Discovered → first regulatory filing

Discovery variance

62days

Range of discovered_at dates across filings

Filing span

11days

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 clocksCalifornia✗ CA 60-day late · 62dHIPAA✓ HHS notifiedMassachusetts✓ MA credit monitoring dueFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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