HackingFinancial ServicesFinanceCustomer Data InvolvedTargetedIdentity (basic)Government IDFinancial accountMediumContained

MISSION BANK

bd_2e038e092086f93a · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 18, 2024

Filed

Jan 22, 2025

To disclose

5 weeks

Affected

2state residents only

Linked

5 records

Confidence

65%

Full breach record for MISSION BANK →2 incidents on file

Mission Bancorp reported a network security incident affecting Mission Bank on December 2, 2024. The breach impacted 2 individuals, including 2 Maine residents. Personal information exposed included names, SSNs, DOBs, driver's license numbers, and financial account numbers. Mission Bank isolated systems, engaged forensic investigators, and notified law enforcement. Notices were sent on January 6, 2025, offering 12 months of credit monitoring via TransUnion.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Dec 18, 2024 → Filed with AG Jan 22, 202535d ⏱ ME AG >30d5 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 · 16 days

discovery → filing · 5 weeks / 35 days

Dec 2, 2024

Begins

Dec 18, 2024

Discovered

Jan 22, 2025

Filed

vs. sector median

3 wks faster

This filing is one of 5 records about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteransomhubbd_d54f57ee18d6f5302025-01-23 · +1dCandidate

Regulatory filings (3) · sorted by filing gap

New Hampshire State AGbd_1ec0ec35daba041a2025-01-22Verified
Montana State AGbd_36afb6655f680ae22025-01-07 · +15dCandidate
California State AGbd_7c5f8b4a3c098d282025-01-07 · +15dVerified

Name: Mission Bancorp
norm: mission bancorp
Industry: Financial Services

Name: MISSION BANK
norm: mission bank
Domain: missionbank.bank
Industry: Financial Services
Industry: Financial Servicesllm

Discovered: Dec 18, 2024
Breach occurred: Dec 2, 2024
Undetected for: 16 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 6, 2025
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: External
Initial access: exploit_public_facing

During the incident: Isolated the impacted systems
Engaged third-party forensic specialists to investigate the incident
Notified law enforcement
Changes made: Reviewing technical safeguards and looking into enhancements to prevent a similar incident
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 weeks(35 days from discovery to filing)
Compliance flags: ME AG >30d · 35d
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: Dec 18, 2024
→ Filed with AG: Jan 22, 2025
35d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Dec 18, 2024 → Filed with AG: Jan 22, 2025	35d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Montana State AGJan 7 · first

California State AGJan 7 · first

New Hampshire State AG+15d

Maine State AG+15d · this page

Pattern: first filing Jan 7 (MT), last Jan 22 (ME) — a 15-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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/d93cd49f-27c3-4358-81a1-8404a110483f.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 22, 2025
Raw hash: 2dfdfa3c6b7365e7f1b5801e481631278aecc245a4381df09dab96009a50f1dd

Linked disclosures

Ransomware claims (1)

Regulatory filings (3) · sorted by filing gap

Reporting entityMission Bancorp

Victim entityMISSION BANK

Incidentdiscovered Dec 18, 2024

Stated responseIsolated the impacted systems

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov