MalwareEnergy & UtilitiesProfessional ServicesUtilitiesRansomwareData EncryptedData ExfiltratedRansom DemandedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

EB Archbald & Associates, Inc.

bd_ddaad36df642bd8a · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 23, 2025

Filed

May 13, 2025

To disclose

7 weeks

Affected

Not disclosed

Linked

8 filings

Confidence

65%

Full breach record for EB Archbald & Associates, Inc. →

EB Archbald & Associates, Inc., an energy production accounting services provider, suffered a ransomware attack on March 23, 2025. Attackers encrypted data on servers and a Microsoft cloud portal and demanded payment. The company refused to pay. Attackers subsequently claimed to have exfiltrated data, including names, addresses, SSNs/TINs, and bank account/routing information. The company engaged forensic experts and notified the FBI, offering identity theft protection to affected individuals.

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Incident timeline

discovery → filing · 7 weeks / 51 days

Mar 23, 2025

Begins

Mar 23, 2025

Discovered

May 13, 2025

Filed

This filing is one of 8 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (7) · sorted by filing gap

Massachusetts State AGbd_132978a4b6696c132025-05-14 · +1dVerified
Montana State AGbd_3958bbbaf620f66e2025-05-14 · +1dCandidate
Maine State AGbd_6521be5edc1246672025-05-14 · +1dVerified
Indiana State AGbd_196a79446ee9a3762025-05-20 · +7dVerified

Show 3 more filings ↓up to 24d gap

Delaware State AGbd_a9c188028cc5a8202025-05-20 · +7dVerified
Nebraska State AGbd_2ac0580cdb755adb2025-05-21 · +8dVerified
Texas State AGbd_6ac3bf8d232736102025-06-06 · +24dVerified

Name: EB Archbald & Associates, Inc.
norm: eb archbald associates

Name: EB Archbald & Associates, Inc.
norm: eb archbald associates
Industry: Energy & UtilitiesllmProfessional Servicesllm

Discovered: Mar 23, 2025
Breach occurred: Mar 23, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified the Federal Bureau of Investigation

During the incident: Contacted the local office of the Federal Bureau of Investigation and notified them of the attack
Refused to meet the attackers’ extortion demands
Launched an investigation with the assistance of cybersecurity experts, law enforcement and outside lawyers
Offering identity theft protection services at no cost through IDX, A Zero Fox Company
Changes made: Continue work with outside cybersecurity experts to reinforce systems and security protocols
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(51 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 8 filings · 8 states

View merged incident ↗

California State AGMay 13 · first · this page

Massachusetts State AG+1d

Texas State AG+24d

Pattern: first filing May 13 (CA), last Jun 6 (TX) — a 24-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://oag.ca.gov/ecrime/databreach/reports/sb24-602641
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 13, 2025
Raw hash: 6e71597bf66bc7d445cc08f8a67beb9b1b4caae89e1bf6d897a126020e33ffdd

Linked disclosures

Regulatory filings (7) · sorted by filing gap

Reporting entityEB Archbald & Associates, Inc.

Victim entityEB Archbald & Associates, Inc.

Incidentdiscovered Mar 23, 2025

Stated responseContacted the local office of the Federal Bureau of Investigation and notified them of the attack

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov