HackingGovernmentGovernmentData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)MediumContained

Upper Thompson Sanitation District

bd_da30c68e5412becc · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 24, 2023

Filed

Apr 10, 2023

To disclose

6 weeks

Affected · nationwide

571 in this filing

Confidence

66%

Full breach record for Upper Thompson Sanitation District →

Upper Thompson Sanitation District reported an external system breach (hacking) occurring on January 20, 2023, discovered on February 24, 2023. The incident affected 57 individuals, including 1 Maine resident. Personal information compromised included names and Social Security Numbers. The District provided written notification and offered identity theft protection services.

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Maine clockDiscovered Feb 24, 2023 → Filed with AG Apr 10, 202345d ⏱ ME AG >30d6 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 · 35 days

discovery → filing · 6 weeks / 45 days

Jan 20, 2023

Begins

Feb 24, 2023

Discovered

Apr 10, 2023

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed57 affectedView incident

Name: Upper Thompson Sanitation District
norm: upper thompson sanitation district

Name: Upper Thompson Sanitation District
norm: upper thompson sanitation district
Industry: Governmentllm

Discovered: Feb 24, 2023
Breach occurred: Jan 20, 2023
Undetected for: 35 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 24, 2023
Affected individuals: 57state + 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: External
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 identity theft protection services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(45 days from discovery to filing)
Compliance flags: ME AG >30d · 45d
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: Feb 24, 2023
→ Filed with AG: Apr 10, 2023
45d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Feb 24, 2023 → Filed with AG: Apr 10, 2023	45d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

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-a1252b4f8318/02a1c2cc-554f-4185-9ddd-9b81daece4f2.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 10, 2023
Raw hash: 16153d7a2d53bc4254add0e847deb256d6c5a4b35bca2a88adf6d0786355ef3f

Reporting entityUpper Thompson Sanitation District

Victim entityUpper Thompson Sanitation District

Incidentdiscovered Feb 24, 2023

Stated responseSent written notification to affected individuals

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov