HackingTechnologyInformationCustomer Data InvolvedIdentity (basic)Financial accountFinancial credentialsLowContained

ViewSonic Corporation

bd_a4d635fea0ad97e1 · schema v1 · pii pii-v2

Severity

Low

Discovered

Jun 25, 2026

Filed

Sep 30, 2026

To disclose

14 weeks

Affected

2state residents only

Linked

4 filings

Confidence

70%

Full breach record for ViewSonic Corporation →2 incidents on file

ViewSonic Corporation notified the NH Attorney General of a security incident involving its website. Unauthorized access to customer information occurred between April 17, 2026, and June 18, 2026. ViewSonic became aware of the incident on June 25, 2026. Approximately two New Hampshire residents were affected. The compromised data included names, credit/debit card numbers, security codes, and expiration dates. ViewSonic engaged forensic specialists, contained the incident, and offered 12 months of credit monitoring.

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Incident timeline

undetected · 69 days

discovery → filing · 14 weeks / 97 days

Apr 17, 2026

Begins

Jun 25, 2026

Discovered

Sep 30, 2026

Filed

vs. sector median

+3 wks slower

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_0b9cbaa2bac707222026-09-30Candidate
Vermont State AGbd_4bcc59f6e8e762312026-09-30Verified
Massachusetts State AGbd_fc875b021b4797e52026-10-01 · +1dVerified

Name: ViewSonic Corporation
norm: viewsonic
Domain: kla.com

Name: ViewSonic Corporation
norm: viewsonic
Industry: Technologyllm

Discovered: Jun 25, 2026
Breach occurred: Apr 17, 2026 – Jun 18, 2026
Undetected for: 69 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 30, 2026
Affected individuals: 2state-resident count only
Data types: Identity (basic)Financial accountFinancial credentials
Attack vector: Unknown
Threat actor: External
Regulator citations: Notified the New Hampshire Office of the Attorney General

During the incident: Immediately began an investigation with assistance of its IT team and third-party forensic specialists
Conducted a review of the potentially impacted data in order to determine the information contained therein and to whom it related
Sent written notice of this incident to the potentially impacted New Hampshire residents
Offered complimentary credit monitoring and identity theft protection services for twelve (12) months
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 14 weeks(97 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Indiana State AGSep 30 · first

Vermont State AGSep 30 · first

New Hampshire State AGSep 30 · first · this page

Massachusetts State AG+1d

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/viewsonic-corporation-20260930.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 30, 2026
Raw hash: c23df745091a4199ca322d111a77a14f2db066dedf637310599848c5258ad4bb

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityViewSonic Corporation

Victim entityViewSonic Corporation

Incidentdiscovered Jun 25, 2026

Stated responseImmediately began an investigation with assistance of its IT team and third-party forensic specialists

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov