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Confirmed6 filings · 4 statesUnverified claimConfirmedEnforcedplayhigh sensitivity

Merged incident · 6 filings

De Gruyter Brill, Inc — February 2026 breach

Clustered 6 filings across 5 jurisdictions · filing window Jan 31, 2026 → Mar 10, 2026. View entity profile → Other incidents for this victim →

⚠ 1 cross-filing discrepancy →Merge100%

Determination

Confirmed

Members

6 filings

States

Affected · reported

263

First → last filing

Jan 31, 2026 → Mar 10, 2026

Merge confidence

100%

incident inc_34c63882d98346d1 · merged by human · confidence 100%

Confirmed breach. Merged as one breach: 4 regulatory filings and 2 unverified claims. The filings describe unauthorized access. Intrusion Feb 4, 2026, discovered Feb 4, 2026 — the first regulatory filing landed 33 days later. 263 individuals reported across the linked filings. Data reported: Government ID, Identity (basic), and Financial account. Notifications rolled out on a 38-day schedule across 4 filings beginning Jan 31, 2026. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental

Notification delay

33days

Discovered → first regulatory filing

Discovery variance

0days

Range of discovered_at dates across filings

Leak precedence

37days before filing

Days between the first leak-site claim and the first regulatory filing. 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.

Filing span

38days

Time between earliest and latest filing

Not recorded for this incident

Materiality delta · SEC filing delay — no SEC 8-K in this cluster.

Regulatory clocksMaine⏱ ME AG >30d · 33dLeak gap⏱ Leak >30dFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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