HackingProfessional ServicesProfessional ServicesCustomer Data InvolvedIdentity (basic)Financial accountLowContained

American Meteorological Society, Inc.

bd_e6c548a44be5df27 · schema v1 · pii pii-v1

Severity

Low

Discovered

Aug 9, 2023

Filed

Dec 15, 2023

To disclose

18 weeks

Affected · nationwide

5575 in this filing

Linked

6 filings

Confidence

66%

Full breach record for American Meteorological Society, Inc. →

The American Meteorological Society experienced an external system breach (hacking) on August 9, 2023. The incident affected 557 individuals, including 5 Maine residents. The attacker acquired names and personal identifiers in combination with financial account or credit/debit card numbers (including security codes, access codes, passwords, or PINs). The Society provided written notification on December 14, 2023, and offered 12 months of credit, identity, and dark web monitoring, along with fraud insurance and a call center.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Aug 9, 2023 → Filed with AG Dec 15, 2023128d ✗ ME AG >90d18 weeks discovery → filing

⚠ occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Incident timeline

discovery → filing · 18 weeks / 128 days

Aug 9, 2023

Begins

Aug 9, 2023

Discovered

Dec 15, 2023

Filed

vs. sector median

+1 wks slower

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

A leak claim by cactus about this victim predates this filing by 148 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitecactusbd_568a5325102af8f42023-07-20 · +148dVerified by operator

Regulatory filings (4) · sorted by filing gap

Massachusetts State AGbd_08ff271fb8d0245f2023-12-14 · +1dVerified by operator
Vermont State AGbd_37660df843cc34e32023-12-14 · +1dVerified
New Hampshire State AGbd_4fa7bfef28659bc62023-12-14 · +1dCandidate
Montana State AGbd_b970b0b0dbd5b2a92023-12-14 · +1dVerified

Name: American Meteorological Society, Inc.
norm: american meteorological society

Name: American Meteorological Society, Inc.
norm: american meteorological society
Industry: Professional Servicesllm

Discovered: Aug 9, 2023
Breach occurred: Aug 9, 2023
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 14, 2023
Affected individuals: 557state + nationwide
Data types: Identity (basic)Financial account
Data elements: Financial account 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 consumers
Offered 12 months of credit, identity, and dark web monitoring
Provided $1M fraud insurance
Provided 90-day call center
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 18 weeks(128 days from discovery to filing)
Compliance flags: ME AG >90d · 128dME resident >60d · 127dLeak >90d
Discovery-date grounding: occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Aug 9, 2023
→ Filed with AG: Dec 15, 2023
128d 90 days ME AG >90d
Maine
Discovered: Aug 9, 2023
→ Notified: Dec 14, 2023
127d 60 days (analyst band; statutory cap is 30 days) ME resident >60d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Aug 9, 2023 → Filed with AG: Dec 15, 2023	128d	90 days	ME AG >90d
Maine	Discovered: Aug 9, 2023 → Notified: Dec 14, 2023	127d	60 days (analyst band; statutory cap is 30 days)	ME resident >60d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Massachusetts State AGDec 14 · first

Vermont State AGDec 14 · first

New Hampshire State AGDec 14 · first

Montana State AGDec 14 · first

Maine State AG+1d · this page

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-a1252b4f8318/0c359484-5b5f-45ec-a1f5-9ceccec0b442.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 15, 2023
Raw hash: 030b9981bb442c2ed5cf524a92fa178a789ef50c2eb7ed7543bb93c1eb205e90

Linked disclosures

Ransomware claims (1)

Regulatory filings (4) · sorted by filing gap

Reporting entityAmerican Meteorological Society, Inc.

Victim entityAmerican Meteorological Society, Inc.

Incidentdiscovered Aug 9, 2023

Stated responseSent written notification to affected consumers

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov