🐻California State AGlinked via multistate filing link · 100%
Clustered 5 filings across 3 jurisdictions · filing window Jan 27, 2021 → Mar 4, 2021. View entity profile → Other incidents for this victim →
incident inc_aab7bc6f7ead4f5d · merge_method human · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
Identity (basic) · Government ID
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.
CA ME MT
all State AG
per-filing reported counts
State AGs report only their own residents; bars show per-filing counts.
Earliest sighting first · deep chronology in Litigation Timeline
Nov 17, 2020 → Nov 25, 2020
When the intrusion reportedly occurred, per the linked filings
Nov 25, 2020
Reported by CALIFORNIA AG filing
Jan 13, 2021
Reported by MAINE AG filings
Diversified Gas & Oil Corporation reported an external system breach that occurred on November 25, 2020, and was discovered on January 13, 2021. The breach compromised the names and Social Security numbers of 24 Maine residents. The company notified the affected individuals on March 4, 2021, and offered 24 months of credit monitoring and identity protection services through IDX.
Affected (this filing): 24
Diversified Gas & Oil Corporation reported a data breach to the Montana Attorney General. The breach was reported on 2021-03-04. The breach occurred on 11/25/2020. 1 Montana residents were affected.
Affected (this filing): 1
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.
Diversified Gas & Oil Corporation notified California AG that on November 25, 2020, a malware infection infiltrated its systems between November 17 and 25, 2020. The incident involved unauthorized access to personal information including names, addresses, and Social Security numbers of business partners and royalty payees. The company engaged third-party specialists, notified law enforcement, and offered two years of credit monitoring and identity protection services via IDX.
Diversified Gas & Oil Corporation reported an external system breach that occurred on November 25, 2020, and was discovered on January 13, 2021. The breach affected 43,529 individuals, compromising names and Social Security numbers. The company began notifying affected individuals on January 27, 2021, and offered 24 months of credit monitoring and identity protection services through IDX.
Affected (this filing): 43,529
Diversified Gas & Oil Corporation reported a data breach to the Montana Attorney General. The breach was reported on 2021-01-27. The breach occurred on 11/25/2020. 53 Montana residents were affected.
Affected (this filing): 53