Confirmed breach. Intrusion Aug 26, 2024–Aug 27, 2024, discovered Aug 28, 2024 — the first regulatory filing landed 30 days later. 780 individuals reported across the linked filings.
Apellis Pharmaceuticals, Inc. notified Vermont AG that an unauthorized actor accessed an employee email account from Aug 26-27, 2024, discovered Aug 28. Exposed data included names, addresses, and financial account/routing numbers. Apellis contained the incident, reset credentials, and provided 12 months of Kroll identity monitoring.
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.
VT AG >14 bday
🏎️Indiana State AGlinked via multistate filing link · 100%
Apellis Pharmaceuticals Inc reported a data breach to the Indiana Attorney General. The breach occurred on 2024-08-26 and was reported on 2024-09-27. 6 Indiana residents were affected. 780 individuals affected in total.
Apellis Pharmaceuticals, Inc. experienced an external system breach that was discovered on August 28, 2024. The incident affected 4 Maine residents, who were notified on September 30, 2024. The company offered 12 months of identity monitoring services through Kroll.