HackingTechnologyManufacturingInformationData ExfiltratedCustomer Data InvolvedIdentity (basic)LowContained

Tektronix Inc

bd_3c701ac4a9cec832 · schema v1 · pii pii-v1

Severity

Low

Discovered

Oct 1, 2023

Filed

Oct 3, 2024

To disclose

12 months

Affected

11state residents only

Linked

4 filings

Confidence

65%

Full breach record for Tektronix Inc →

Tektronix, Inc. notified the New Hampshire Attorney General of a security incident involving unauthorized third-party access to its network. The unauthorized access occurred between January 25, 2023, and November 6, 2023. The breach affected the personal information of approximately 11 New Hampshire residents, including full names. Tektronix engaged external cybersecurity experts, notified law enforcement, and provided credit monitoring services to affected individuals.

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Incident timeline

undetected · 249 days

discovery → filing · 12 months / 368 days

Jan 25, 2023

Begins

Oct 1, 2023

Discovered

Sep 3, 2024

Scope determined

Oct 3, 2024

Filed

vs. sector median

+34 wks slower

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Massachusetts State AGbd_5b69398ef875b9692024-10-03Verified
Oregon State AGbd_620483ee9e0365d42024-10-03Verified
Montana State AGbd_64c285477ce8d3ee2024-10-03Candidate

Name: Tektronix Inc
norm: tektronix

Name: Tektronix Inc
norm: tektronix
Industry: TechnologyllmManufacturingllm

Discovered: Oct 1, 2023
Breach occurred: Jan 25, 2023 – Nov 6, 2023
Undetected for: 249 daysoccurrence → discovery
Materiality determined: Sep 3, 2024
Notification sent: Oct 3, 2024
Affected individuals: 11state-resident count only
Data types: Identity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Regulator citations: Notified federal law enforcement authorities
Initial access: valid_credentials

During the incident: Engaged leading external cybersecurity experts to assist us in thoroughly investigating the incidents
Issued a precautionary notice about the incident
Offered complimentary credit monitoring to all current employees
Notified potentially affected New Hampshire residents
Established a dedicated toll-free support line
Notified federal law enforcement authorities
Changes made: Enhanced our security monitoring capabilities and technical controls
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 12 months(368 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 ↗

Massachusetts State AGOct 3 · first

Oregon State AGOct 3 · first

Montana State AGOct 3 · first

New Hampshire State AGOct 3 · first · 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://mm.nh.gov/files/uploads/doj/remote-docs/tektronix-20241003.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 3, 2024
Raw hash: f419ba00c2c5f8ca853ca13bd849b6a69b6cca02b262fa074eb155697cf44df0

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityTektronix Inc

Victim entityTektronix Inc

Incidentdiscovered Oct 1, 2023

Stated responseEngaged leading external cybersecurity experts to assist us in thoroughly investigating the incidents

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov