MalwareTechnologyFinancial ServicesInformationRansomwareData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

American Exchange Bank

bd_edceda186902a0ac · schema v1 · pii pii-v1

Severity

Medium

Discovered

Oct 22, 2020

Filed

Jan 11, 2021

To disclose

12 weeks

Affected

2state residents only

Confidence

67%

Full breach record for American Exchange Bank →2 incidents on file

American Bank Systems, Inc. (ABS) notified the NH AG of a ransomware incident affecting its client, American Exchange Bank. Discovered Oct 22, 2020, the attack encrypted systems and exfiltrated customer PII (SSN, DOB, bank account numbers). ABS took systems offline, engaged forensic investigators, and notified clients. Approximately 2 NH residents were affected. ABS offered 12 months of credit monitoring via TransUnion. No evidence of actual misuse found.

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Incident timeline

discovery → filing · 12 weeks / 81 days

Oct 22, 2020

Discovered

Jan 11, 2021

Filed

vs. sector median

7 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed2 affectedView incident

Name: American Bank Systems
norm: american bank

Name: American Exchange Bank
norm: american exchange bank
Industry: TechnologyllmFinancial Servicesllm

Discovered: Oct 22, 2020
Materiality determined: —
Notification sent: Dec 28, 2020
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial

During the incident: Took systems offline
Commenced an investigation
Working with third party investigators
Notified clients
Provided lists of potentially impacted individual customers to clients
Developed a communications plan to issue written notice to impacted individual customers
Offering complimentary access to 12 months of credit and identity monitoring services through TransUnion
Changes made: Resetting ABS user passwords
Reviewed existing security policies
Implemented additional measures, including advanced endpoint monitoring
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 12 weeks(81 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

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://mm.nh.gov/files/uploads/doj/remote-docs/american-bank-systems-20210111.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 11, 2021
Raw hash: 32334811e98386bd0fa3bdba4651cb4e4e4b3371dbc21ff289834281d5dd825f

Reporting entityAmerican Bank Systems

Victim entityAmerican Exchange Bank

Incidentdiscovered Oct 22, 2020

Stated responseTook systems offline

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov