Serco Inc. — May 2023 breach

Clustered 6 filings across 6 jurisdictions · filing window Aug 1, 2023 → Aug 7, 2023. View entity profile → Other incidents for this victim →

⚠ 1 cross-filing discrepancy →Merge100%

Determination

Confirmed

Members

6 filings

States

Affected · reported

10,140

First → last filing

Aug 1, 2023 → Aug 7, 2023

Merge confidence

100%

incident inc_0c4641951b8642b8 · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 6 regulatory filings. Intrusion May 1, 2023–Jun 5, 2023, discovered Jul 3, 2023 — the first regulatory filing landed 29 days later (flagged late). 10,140 individuals reported across the linked filings. Data reported: Government ID, PII, Identity (basic), and 2 more. Notifications rolled out on a 6-day schedule across 6 filings beginning Aug 1, 2023. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental

Notification delay

29days

Discovered → first regulatory filing

Discovery variance

0days

Range of discovered_at dates across filings

Filing span

6days

Time between earliest and latest filing

Not recorded for this incident

Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster.

Regulatory clocksLeak gap✗ Leak >180dMassachusetts✓ MA credit monitoring dueFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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