DisclosureLens
State AGConfirmed2 filings · 1 stateLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedhigh sensitivity
Merged incident · 2 filings

University of Massachusetts Amherst — December 2025 breach

Clustered 2 filings across 1 jurisdiction · filing window Jan 27, 2026 → Feb 20, 2026. View entity profile → Other incidents for this victim →

Determination

Confirmed

Members

2 filings

States

1

Affected · reported

not comparable

First → last filing

Jan 27, 2026 → Feb 20, 2026

Merge confidence

55%

incident inc_c820c711593744ba · merged by llm · confidence 55%

Confirmed breach. Merged as one breach: 2 regulatory filings. Intrusion Dec 15, 2025. Data reported: Government ID, Identity (basic), and Financial account. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Filing span
24days

Time between earliest and latest filing

Not recorded for this incident

Discovery variance · Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster; needs two dated filings.

Regulatory clocksMassachusetts✓ MA credit monitoring dueFull clock table in Litigation Timeline

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University of Massachusetts Amherst data breach (2025) — Massachusetts filings, January 2026 · DisclosureLens