HackingFinancial ServicesFinanceCustomer Data InvolvedGovernment IDIdentity (basic)MediumContained

Cumberland Advisors, LLC

bd_59e92d07c3db90cf · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 20, 2023

Filed

Dec 20, 2023

To disclose

4 weeks

Affected · nationwide

8059 in this filing

Linked

6 filings

Confidence

66%

Full breach record for Cumberland Advisors, LLC →

Cumberland Advisors, Inc. reported an external system breach (hacking) occurring on August 31, 2023, discovered on November 20, 2023. The incident affected 805 individuals, including 9 Maine residents. Acquired data included names and Social Security Numbers. The company provided written notification and offered 12 months of credit monitoring and identity restoration services through Experian.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Nov 20, 2023 → Filed with AG Dec 20, 202330d ✓ ME AG ≤30d4 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 81 days

discovery → filing · 4 weeks / 30 days

Aug 31, 2023

Begins

Nov 20, 2023

Discovered

Dec 20, 2023

Filed

vs. sector median

4 wks faster

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Montana State AGbd_27f60e7defb708fc2023-12-20Candidate
Vermont State AGbd_70f1d52df37b37f82023-12-20Verified
Massachusetts State AGbd_838e5ce538017ce12023-12-20Verified
New Hampshire State AGbd_6ab5b3b9d1b51cd82024-02-14 · +56dVerified

Show 1 more filing ↓up to 56d gap

Maine State AGbd_e75969bf74119acf2024-02-14 · +56dCandidate

Name: Cumberland Advisors, LLC
norm: cumberland advisors

Name: Cumberland Advisors, LLC
norm: cumberland advisors
Industry: Financial Servicesllm

Discovered: Nov 20, 2023
Breach occurred: Aug 31, 2023
Undetected for: 81 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 20, 2023
Affected individuals: 805state + nationwide
Data types: Government IDIdentity (basic)
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: ExternalFinancial
Regulator citations: Filed data breach notice with Maine Attorney General
Initial access: exploit_public_facing

During the incident: Sent written notification to affected individuals
Offered 12 months of credit monitoring and identity restoration services through Experian
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(30 days from discovery to filing)
Compliance flags: ME AG ≤30d · 30d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Nov 20, 2023
→ Filed with AG: Dec 20, 2023
30d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Nov 20, 2023 → Filed with AG: Dec 20, 2023	30d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 5 states

View merged incident ↗

Montana State AGDec 20 · first

Vermont State AGDec 20 · first

Massachusetts State AGDec 20 · first

Maine State AGDec 20 · first · this page

New Hampshire State AG+56d

Maine State AG+56d

Pattern: first filing Dec 20 (MT), last Feb 14 (ME) — a 56-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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/17c6bb1f-1ecb-49a3-bb6e-32ed03b1c7ab.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 20, 2023
Raw hash: 057548d345b410e4bf7335c293572801c9cf26bc3e8fd03c873995ad7a7c2083

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityCumberland Advisors, LLC

Victim entityCumberland Advisors, LLC

Incidentdiscovered Nov 20, 2023

Stated responseSent written notification to affected individuals

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov