KIRKLAND & ELLIS LLP — May 2023 breach

Clustered 10 records across 8 jurisdictions: 8 filings and 2 leak-site claims · filing window Sep 7, 2023 → Jun 17, 2024 (dated filings only). View entity profile → Other incidents for this victim →

⚠ 2 cross-filing discrepancies →Merge100%

Determination

Confirmed

Members

10 records

States

Affected · reported

11,156

First → last dated filing

Sep 7, 2023 → Jun 17, 2024

Merge confidence

100%

incident inc_cfa39fa720854cca · merged by human · confidence 100%

Part of the Progress Software Corporation supply-chain incident (2023) — at least 89 organizations filed notifications naming this third party.

Confirmed breach. Merged as one breach: 8 regulatory filings and 2 unverified claims. The filings describe a third-party compromise. Intrusion May 27, 2023–May 31, 2023, discovered May 27, 2023 — the first regulatory filing landed 103 days later; 3 later filings were flagged late. 11,156 individuals reported across the linked filings. Data reported: Government ID, Identity (basic), Financial account, and 5 more. Notifications rolled out on a 284-day schedule across 7 dated filings beginning Sep 7, 2023. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental

Notification delay

103days

Discovered → first regulatory filing

Discovery variance

241days

Range of discovered_at dates across filings

Leak precedence

70days before filing

Days between the first sighting of the earliest-seen leak-site claim and the first regulatory filing. Measured from when the aggregator first saw the post, not the crew's own (often earlier) date. 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

284days

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 >180dVermont✗ VT AG >45 bdayWashington✗ WA AG >90dCalifornia✗ CA 60-day late · 363dFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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