Confirmed breach. Intrusion May 31, 2023, discovered Jul 3, 2023 — the first regulatory filing landed 30 days later (flagged late). 10,140 individuals reported across the linked filings.
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 clocksLeak gap✗ Leak >180dFull clock table in Litigation Timeline
State AGConfirmedLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedhigh sensitivity
Affected (total reported)
10,140
Data types
2
Identity (basic) · Government ID
Jurisdictions
2
CA ME
Linked filings
2
all State AG
Sensitive data
identity_government
Timeline
Earliest sighting first · deep chronology in Litigation Timeline
Breach window
May 31, 2023
When the intrusion reportedly occurred, per the linked filings
Serco, Inc. reported a data breach on May 31, 2023, involving unauthorized access to employee personal information via a ransomware attack on a third-party platform. Affected data may include names, SSNs, DOBs, addresses, emails, and health benefit info. No evidence of misuse. NortonLifeLock monitoring provided.
Leak >180d
🦞Maine State AGMost recentlinked via multistate filing link · 100%
Serco, Inc. reported an external system breach (hacking) occurring on May 31, 2023, discovered on July 3, 2023. The incident affected 10,140 individuals, including 39 Maine residents. Personal information acquired included names and Social Security Numbers. Serco provided written notification on August 1, 2023, and offered one year of complimentary identity theft protection and credit monitoring through NortonLifeLock.
Affected (this filing): 10,140
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. Filing summaries shown in the timeline are AI-generated extracts — verify each against its linked source.