BMO Bank N.A. — May 2017 breach

Clustered 5 filings across 5 jurisdictions · filing window May 24, 2017 → May 31, 2017. View entity profile → Other incidents for this victim →

⚠ 1 cross-filing discrepancy →Merge100%

Determination

Confirmed

Members

5 filings

States

Affected · reported

38,391

First → last filing

May 24, 2017 → May 31, 2017

Merge confidence

100%

incident inc_bb82651a1bfa4592 · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 5 regulatory filings. The filings describe an accidental exposure. Intrusion May 15, 2017, discovered May 17, 2017 — the first regulatory filing landed 7 days later. 38,391 individuals reported across the linked filings. Data reported: Government ID, Identity (basic), and Financial account. Notifications rolled out on a 7-day schedule across 5 filings beginning May 24, 2017. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Notification delay

7days

Discovered → first regulatory filing

Filing span

7days

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 clocksOregon✓ OR AG ≤45dFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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