One linked filing — more sources may join as they report · filed Sep 26, 2018. View entity profile → Other incidents for this victim →
incident inc_9157c6b0522d4ac8 · merge_method deterministic
Discovered → first regulatory filing
Not recorded for this incident
Discovery variance · Leak precedence · Materiality delta · SEC filing delay · Filing span — no leak-site claim in this cluster; no SEC 8-K in this cluster; needs two dated filings.
Identity (basic) · Credentials
CA
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Apr 29, 2018
When the intrusion reportedly occurred, per the linked filings
Sep 19, 2018
Reported by CALIFORNIA AG filing
In September 2018, Chegg, Inc. discovered that on or around April 29, 2018, an unauthorized party accessed a database hosting user data for Chegg.com and its family of student services. Potentially compromised data included names, email addresses, shipping addresses, Chegg usernames, and hashed passwords. No financial information such as credit card numbers, bank account info, or SSNs was believed to have been obtained.
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.