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Confirmed17 filings · 14 statesUnverified claimConfirmedEnforcedcl0phigh sensitivity

Merged incident · 17 filings

MAXIMUS, Inc. — May 2023 breach

Clustered 17 filings across 15 jurisdictions · filing window Jan 1, 2023 → Jan 10, 2024. View entity profile → Other incidents for this victim →

⚠ 2 cross-filing discrepancies →Merge100%

Determination

Confirmed

Members

17 filings

States

Affected · reported

9,179,390

First → last filing

Jan 1, 2023 → Jan 10, 2024

Merge confidence

100%

incident inc_ee8218ee9803440e · merged by human · confidence 100%

Confirmed breach. Merged as one breach: 16 regulatory filings and 1 unverified claim. The filings describe hacking. Intrusion May 27, 2023–May 31, 2023, discovered May 27, 2023. 9,179,390 individuals reported across the linked filings. Data reported: Government ID, PII, PHI, and 2 more. Notifications rolled out on a 374-day schedule across 16 filings beginning Jan 1, 2023. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental

Discovery variance

4days

Range of discovered_at dates across filings

Leak precedence

Noneclaim trailed by 206d

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

374days

Time between earliest and latest filing

Not recorded for this incident

Materiality delta · SEC filing delay

Regulatory clocksVermont✗ VT AG >45 bdayOregon✗ OR AG >45dWashington⏱ WA AG >30dLeak gap⏱ Leak >30dHIPAA✓ HHS notifiedFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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