HackingEnergy & UtilitiesUtilitiesData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Ahtna Incorporated

bd_11bf1ab7ad30a689 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 28, 2025

Filed

Feb 19, 2026

To disclose

29 weeks

Affected

Not disclosed

Linked

11 filings

Confidence

65%

Full breach record for Ahtna Incorporated →

Ahtna, Inc. reported a data breach where an unauthorized third party accessed systems between April 20, 2025, and June 1, 2025, acquiring files containing personal information including names and Social Security numbers. The incident was discovered on July 28, 2025. This is a supplemental notice. Ahtna contained the network, engaged outside professionals for investigation, and is offering credit monitoring services to affected individuals.

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California clockDiscovered Jul 28, 2025 → Notified Jan 20, 2026176d ✗ CA 60-day late29 weeks discovery → filing

Incident timeline

undetected · 99 days

discovery → filing · 29 weeks / 206 days

Apr 20, 2025

Begins

Jul 28, 2025

Discovered

Feb 19, 2026

Filed

This filing is one of 11 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Siteqilinbd_d569bf6c1b98ae752025-08-12 · +191dVerified by operator
Leak Siteqilinbd_fdd9e411b4d479412025-07-28 · +206dVerified by operator

Regulatory filings (8) · sorted by filing gap

Texas State AGbd_4e509ebc850ec1d92026-02-20 · +1dVerified by operator
California State AGbd_12ccee8c9159108c2025-11-21 · +90dVerified by operator
Maine State AGbd_2ff3c11d1751fbb22025-11-21 · +90dCandidate
Indiana State AGbd_31c06274ced5bd372025-11-21 · +90dVerified by operator

Show 4 more filings ↓up to 90d gap

Vermont State AGbd_90c6835deaec47512025-11-21 · +90dVerified by operator
Nebraska State AGbd_bcad1e46b464e8b92025-11-21 · +90dVerified by operator
Massachusetts State AGbd_cb0c23b4c2cd68a02025-11-21 · +90dVerified by operator
New Hampshire State AGbd_f23a1a2a204c96b52025-11-21 · +90dVerified

Name: Ahtna Incorporated
norm: ahtna
Domain: ahtna.com

Name: Ahtna Incorporated
norm: ahtna
Domain: ahtna.com
Industry: Energy & Utilitiesllm

Discovered: Jul 28, 2025
Breach occurred: Apr 20, 2025 – Jun 1, 2025
Undetected for: 99 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 20, 2026
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1041 Exfiltration Over C2 Channel
Threat actor: External

During the incident: Contained the network
Conducted an investigation with the assistance of outside professionals
Notifying individuals whose personal information was identified in the files involved in the event
Offering access to months of complimentary credit monitoring and identity restoration services through CyberScout, a TransUnion company
Changes made: Reviewing our existing policies and procedures to help reduce the likelihood of a similar event occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 29 weeks(206 days from discovery to filing)
Compliance flags: CA 60-day late · 176dCA AG copy >15d · 30d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Jul 28, 2025
→ Notified: Jan 20, 2026
176d 60 days (analyst band, pre-2026 discoveries) CA 60-day late
California
Consumers notified: Jan 20, 2026
→ AG copy submitted: Feb 19, 2026
30d 15 calendar days CA AG copy >15d

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Jul 28, 2025 → Notified: Jan 20, 2026	176d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late
California	Consumers notified: Jan 20, 2026 → AG copy submitted: Feb 19, 2026	30d	15 calendar days	CA AG copy >15d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 8 states

View merged incident ↗

California State AGNov 21 · first

Maine State AGNov 21 · first

Indiana State AGNov 21 · first

Vermont State AGNov 21 · first

Nebraska State AGNov 21 · first

Massachusetts State AGNov 21 · first

New Hampshire State AGNov 21 · first

California State AG+90d · this page

Texas State AG+91d

Pattern: first filing Nov 21 (CA), last Feb 20 (TX) — a 91-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/sb24-619000
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 19, 2026
Raw hash: 724bbe9864eabcb5f12b24205e8baf0ce92fc18fb4de1f257648297e8912995c

Linked disclosures

Ransomware claims (2)

Regulatory filings (8) · sorted by filing gap

Reporting entityAhtna Incorporated

Victim entityAhtna Incorporated

Incidentdiscovered Jul 28, 2025

Stated responseContained the network

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov