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Leak SiteState AGConfirmed6 filings · 5 statesLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedcontihigh sensitivity
Merged incident · 6 filings

ACUITY BRANDS LIGHTING, INC. — October 2020 breach

Clustered 6 filings across 6 jurisdictions · filing window Jan 15, 2022 → Dec 6, 2022. View entity profile → Other incidents for this victim →

⚠ 1 cross-filing discrepancy →Merge100%

Determination

Confirmed

Members

6 filings

States

5

Affected · reported

37,137

First → last filing

Jan 15, 2022 → Dec 6, 2022

Merge confidence

100%

incident inc_1681041163c0403c · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 5 regulatory filings and 1 unverified claim. The filings describe unauthorized access. Intrusion Oct 6, 2020–Dec 8, 2021, discovered Dec 7, 2021 — the first regulatory filing landed 364 days later (flagged late). 37,137 individuals reported across the linked filings. Data reported: Government ID, Financial account, Identity (basic), and 2 more. Notifications rolled out on a 325-day schedule across 5 filings beginning Jan 15, 2022. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental
Notification delay
364days

Discovered → first regulatory filing

Discovery variance
0days

Range of discovered_at dates across filings

Leak precedence
325days 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
325days

Time between earliest and latest filing

Not recorded for this incident

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

Regulatory clocksLeak gap✗ Leak >180dMaine✗ ME AG >90d · 364dFull clock table in Litigation Timeline

Sensitive data

identity_government

Incident timeline

Oct 6, 2020breach begins
Dec 7, 2021discovered
notification delay · 364 days
Dec 6, 2022first filing
—watching for filings

Dashed segments are unestablished, not zero — they fill in as filings merge into this incident.

Member cascade — every filing about this breach

  1. JAN 15Leak siteconti postfirst filing · attacker claim · unverifiedday 0
  2. DEC 6IN AGIN AG noticestates nationwide total 37,137+325d
  3. DEC 6MA AGMA AG notice297 MA residents+325d
  4. DEC 6ME AGME AG noticestates nationwide total 37,137+325d
  5. DEC 6CA AGCA AG noticeno count stated+325d
  6. DEC 6MT AGMT AG noticemost recent · 19 MT residents+325d
  7. Watching for additional filings — new sources merge into this incident automatically.

Roll-up facts — reconciled across members

Breach window
Oct 6, 2020
IN AG
Discovered
Dec 7, 2021· 427d undetected
ME AG + CA AG + MT AG
Data types
Employment · Financial account · Health (basic) · Identity (basic) · Government ID
MA AG + CA AG + MT AG +1
Attack vector
Unauthorized Access
ME AG

Each fact cites the member filing that establishes it; when filings conflict, every value shows with its source.

Count reconciliation

per-state reported counts

Nationwide (stated in a filing)

37,137

Sum of filed state slices

7,547· 20.3% of stated

80% of the stated total lives in states whose filings carry no count — the dashed share shrinks as filings land.

US37,137
IN7,209
MA297
ME22
MT19

State AGs report only their own residents; teal bars show each state's reported slice. The gray US row is the nationwide total reported in a linked filing.

Evidence ladder — rungs this incident occupies

Leak-site claim1 member

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

No press coverage linked yet.

State AG / regulator filing5 members

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

No SEC filing or victim statement yet.

Merge provenance

Method
deterministic
Confidence
1.00 · above the 0.85 auto-merge floor
Reviewed
operator-reviewed Aug 23, 2026 · at least one link edge was human-adjudicated
Audit
Every link edge records its method, confidence and model + prompt versions (100% is the strongest edge).

Merges are reversible — a wrong link can be detached with its audit trail intact. How merging works.

Filing velocity

Spread

325 days

Cadence

~1 / 65d

vs. multi-state median

40.6× slower

About this clustering

DisclosureLens links filings into incidents through layered matchers: deterministic rules (same source document, multistate filings of one breach, tight-window same-victim pairs), a weighted-similarity scorer for cross-source candidates, and an operator review queue for everything uncertain. Each link records its own method and confidence — shown per filing in the timeline below. The system defaults to NOT merging when uncertain, because a false merge (collapsing two unrelated breaches) is more harmful than a false split (showing related filings separately); uncertain pairs route to human review instead of auto-merging. This page states only what the linked filings agree on; each filing's own account stays on its own record, linked from the timeline below.

The weekly clock on records like this one

The Disclosure Clock is a weekly briefing on what landed in the disclosure record, and the gap between the criminals' post and the regulator's filing — measured on the whole record, with the method shown.

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