MalwareFinancial ServicesFinanceRansomwareData EncryptedDelayed DiscoveryPIIIdentity (basic)MediumContained

ARTHUR J. GALLAGHER & CO.

bd_2d949b950d7effe7 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 26, 2020

Filed

Jul 21, 2021

To disclose

43 weeks

Affected

1,348state residents only

Linked

30 filings

Confidence

64%

Full breach record for ARTHUR J. GALLAGHER & CO. →31 incidents on file

Arthur J. Gallagher & Co. notified South Carolina and other jurisdictions of a ransomware incident detected on September 26, 2020. The attack occurred between June 3 and September 26, 2020, resulting in the encryption of internal systems. Gallagher took systems offline, engaged forensic specialists, and reported to law enforcement. The breach impacted individuals' personal information, for which 24 months of credit monitoring via Kroll was provided. Notification was sent on May 24, 2021.

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South Carolina clock✓ SC CRA notice due43 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 115 days

discovery → filing · 43 weeks / 298 days

Jun 3, 2020

Begins

Sep 26, 2020

Discovered

Jul 21, 2021

Filed

vs. sector median

+34 wks slower

This filing is one of 30 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

South Carolina State AGbd_46c22c0e135074c12021-08-17 · +27dVerified
Delaware State AGbd_4802bf691a0b05cf2021-08-17 · +27dVerified
South Carolina State AGbd_5a60d99cfc68d2f62021-08-17 · +27dVerified
Delaware State AGbd_d559ecce5b3385332021-08-19 · +29dVerified

Show 6 more filings ↓up to 75d gap

New Hampshire State AGbd_7a32a3fe8539d6192021-08-23 · +33dVerified
New Hampshire State AGbd_e05a56a536c799dd2021-09-07 · +48dVerified
South Carolina State AGbd_e1bf416a552091df2021-09-08 · +49dVerified
New Hampshire State AGbd_128a2682206fdf792021-09-13 · +54dVerified
South Carolina State AGbd_97dcb7179082a9e82021-09-30 · +71dVerified
New Hampshire State AGbd_544b44357c05bc6c2021-10-04 · +75dVerified

Showing first 10 of 29 linked disclosures.

Name: ARTHUR J. GALLAGHER & CO.
norm: arthur j gallagher

Name: ARTHUR J. GALLAGHER & CO.
norm: arthur j gallagher
Industry: Financial Servicesllm

Discovered: Sep 26, 2020
Breach occurred: Jun 3, 2020 – Sep 26, 2020
Undetected for: 115 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 24, 2021
Affected individuals: 1,348state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for Impact
Threat actor: ExternalFinancial
Regulator citations: reported this incident to law enforcement and regulatory authorities

During the incident: Took all our systems offline as a precautionary measure
Initiated response protocols
Launched an investigation with the assistance of third-party cybersecurity and forensic specialists
Implemented our business continuity plans
Reported this incident to law enforcement and regulatory authorities
Providing you access, at no cost, to identity and credit monitoring services for twenty-four months through Kroll
Changes made: Reviewed existing security policies and implemented additional measures and enhanced security tools
Implemented additional safeguards
Providing additional training to our employees on data privacy and security
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 43 weeks(298 days from discovery to filing)
Compliance flags: SC CRA notice due
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 3 states

View merged incident ↗

South Carolina State AGJul 21 · first · this page

South Carolina State AG+27d

Delaware State AG+27d

South Carolina State AG+27d

Delaware State AG+29d

New Hampshire State AG+33d

New Hampshire State AG+48d

South Carolina State AG+49d

New Hampshire State AG+54d

South Carolina State AG+71d

New Hampshire State AG+75d

Pattern: first filing Jul 21 (SC), last Oct 4 (NH) — a 75-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 29 — the full spread may be wider.

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://consumer.sc.gov/sites/consumer/files/Documents/Business%20Resources%20Laws/Related%20Laws/Breaches/2021/SafetyNationalCasualtyCorp.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 21, 2021
Raw hash: f292b57a44ef31d3f39a22efa2332625ecf449a4fc6edde772febc9d9e8ca1d7

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityARTHUR J. GALLAGHER & CO.

Victim entityARTHUR J. GALLAGHER & CO.

Incidentdiscovered Sep 26, 2020

Stated responseTook all our systems offline as a precautionary measure

ComplianceSC CRA notice due

Extraction provenanceno artifact recorded

Source provenanceconsumer.sc.gov