HackingEnergy & UtilitiesUtilitiesVulnerability ExploitData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)HighContained

Upper Peninsula Power Company

bd_90c50cb6cd1453b1 · schema v1 · pii pii-v1

Severity

High

Discovered

Nov 1, 2022

Filed

Nov 23, 2022

To disclose

22 days

Affected · nationwide

39,4001 in this filing

Linked

4 filings

Confidence

66%

Full breach record for Upper Peninsula Power Company →

Upper Peninsula Power Company reported an external system breach (hacking) occurring on June 23, 2022, discovered on November 1, 2022. The incident compromised the names and Social Security Numbers of approximately 39,400 individuals, including one Maine resident. The company provided written notification and offered 12 months of credit monitoring and identity protection services through IDX.

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Maine clockDiscovered Nov 1, 2022 → Filed with AG Nov 23, 202222d ✓ ME AG ≤30d22 days 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 · 131 days

discovery → filing · 22 days

Jun 23, 2022

Begins

Nov 1, 2022

Discovered

Nov 23, 2022

Filed

This filing is one of 4 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Indiana State AGbd_25c53e0b5c019f662022-11-23Verified
Montana State AGbd_58879f50380d45282022-11-23Candidate
Massachusetts State AGbd_5a77acefd5c3bb322022-11-23Verified

Name: Upper Peninsula Power Company
norm: upper peninsula power

Name: Upper Peninsula Power Company
norm: upper peninsula power
Industry: Energy & Utilitiesllm

Discovered: Nov 1, 2022
Breach occurred: Jun 23, 2022
Undetected for: 131 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 23, 2022
Affected individuals: 39,400state + 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
Initial access: exploit_public_facing

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

Time to disclose: 22 days(22 days from discovery to filing)
Compliance flags: ME AG ≤30d · 22d
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 1, 2022
→ Filed with AG: Nov 23, 2022
22d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Nov 1, 2022 → Filed with AG: Nov 23, 2022	22d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Indiana State AGNov 23 · first

Montana State AGNov 23 · first

Massachusetts State AGNov 23 · first

Maine State AGNov 23 · first · 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/af15baab-b66a-40fd-82d4-9db2b9e2c74c.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 23, 2022
Raw hash: bdc9804f09024b07f886cb401f78e6e02aa17b650252c320028080a91f682849

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityUpper Peninsula Power Company

Victim entityUpper Peninsula Power Company

Incidentdiscovered Nov 1, 2022

Stated responseSent written notification to affected individuals

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov