HackingFinancial ServicesFinanceStolen CredentialsSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountHighActive

Alaska Air Group Federal Credit Union

bd_b58902d825299539 · schema v1 · pii pii-v1

Severity

High

Discovered

Mar 9, 2026

Filed

Apr 17, 2026

To disclose

6 weeks

Affected · nationwide

10,7058 in this filing

Linked

9 filings

Confidence

66%

Full breach record for Alaska Air Group Federal Credit Union →

Alaska Air Group Federal Credit Union reported a cybersecurity incident on March 5, 2026, involving unauthorized access to its IT systems via a third-party IT service provider. The breach affected 10,705 individuals, including 8 Maine residents. Compromised data included account numbers, driver's licenses, SSNs, and routing numbers. AAGCU engaged cybersecurity experts, resecured its environment, and offered 24 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Mar 9, 2026 → Filed with AG Apr 17, 202639d ⏱ 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 · 4 days

discovery → filing · 6 weeks / 39 days

Mar 5, 2026

Begins

Mar 9, 2026

Discovered

Apr 17, 2026

Filed

vs. sector median

3 wks faster

This filing is one of 9 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (8) · sorted by filing gap

Oregon State AGbd_280fdc00e92257fe2026-04-17Verified
Massachusetts State AGbd_335c6981a3c74afe2026-04-17Verified
California State AGbd_5e0a3bd92e5350802026-04-17Verified
Vermont State AGbd_869dab11152c8f642026-04-17Verified

Show 4 more filings ↓up to 1d gap

Washington State AGbd_e65e6ed6cee144582026-04-17Verified
Indiana State AGbd_34559bdc6ddc4ce52026-04-16 · +1dCandidate
New Hampshire State AGbd_437e2f1386c30f9c2026-04-16 · +1dVerified
Montana State AGbd_b708e0d4efd7f6da2026-04-16 · +1dVerified

Name: Buchanan Ingersoll & Rooney PC
norm: buchanan ingersoll rooney

Name: Alaska Air Group Federal Credit Union
norm: alaska air group federal credit union
Industry: Financial Servicesllm

Discovered: Mar 9, 2026
Breach occurred: Mar 5, 2026
Undetected for: 4 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 16, 2026
Affected individuals: 10,705state + nationwide
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security numberDate of birth
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1119 Automated CollectionT1078 Valid Accounts
Threat actor: External
Regulator citations: Filed notice with Maine Attorney General
Third party: via Third-party IT service provider
Initial access: supply_chain

During the incident: Initiated an investigation with the assistance of cybersecurity experts
Resecured AAGCU’s IT environment
Installed monitoring capabilities on its IT systems to detect suspicious activity
Implementing additional safeguards
Offered potentially affected individuals two years of complimentary credit protection and monitoring services through Experian
Changes made: Installed monitoring capabilities on its IT systems to detect suspicious activity
Implementing additional safeguards
Offered 24 months of complimentary credit monitoring services through Experian
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(39 days from discovery to filing)
Compliance flags: ME AG >30d · 39d
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: Mar 9, 2026
→ Filed with AG: Apr 17, 2026
39d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Mar 9, 2026 → Filed with AG: Apr 17, 2026	39d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 9 states

View merged incident ↗

Indiana State AGApr 16 · first

New Hampshire State AGApr 16 · first

Montana State AGApr 16 · first

Oregon State AG+1d

Massachusetts State AG+1d

California State AG+1d

Vermont State AG+1d

Washington State AG+1d

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-a1252b4f8318/2e59b264-bc69-45c8-8d91-d541c0c6e23c.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 17, 2026
Raw hash: 1ca4621a34dcb33fcc4536970666bde0558139db381aee90caa6065727dbba38

Linked disclosures

Regulatory filings (8) · sorted by filing gap

Reporting entityBuchanan Ingersoll & Rooney PC

Victim entityAlaska Air Group Federal Credit Union

Incidentdiscovered Mar 9, 2026

Stated responseInitiated an investigation with the assistance of cybersecurity experts

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov