Social EngineeringTechnologyInformationPhishingDelayed DiscoveryPIIIdentity (basic)LowActive

Mattson Technology, Inc.

bd_aff0c9d79d4c49a4 · schema v1 · pii pii-v1

Severity

Low

Discovered

—

Filed

Mar 17, 2022

To disclose

—

Affected

Not disclosed

Confidence

63%

Full breach record for Mattson Technology, Inc. →4 incidents on file

Mattson Technology, Inc. notified consumers of a security incident where an unauthorized individual accessed the network between July 8 and October 3, 2022, following a suspicious email received by employees on October 3, 2022. The incident involved the access and removal of files containing personal information. Mattson engaged third-party specialists, reported to federal law enforcement, and offered 12 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline — partial

? — ?

Breach window unknown

Mar 17, 2022

Filed

—

No filing yet · watching

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

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

Name: Mattson Technology, Inc.
norm: mattson technology

Name: Mattson Technology, Inc.
norm: mattson technology
Industry: Technologyllm

Discovered: —
Breach occurred: Jul 8, 2022 – Oct 3, 2022
Materiality determined: Mar 17, 2023
Notification sent: Mar 17, 2023
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: External
Regulator citations: Notifying the appropriate regulators, as required
Initial access: phishing_link

During the incident: Moved quickly to respond and investigate the event
Launched an investigation with the assistance of third-party computer specialists
Reported this to federal law enforcement
Offering 12 months of complimentary credit monitoring through Equifax
Changes made: Implementing additional training to employees
Reviewing policies, procedures, and protocols to reduce the likelihood of a similar event
Source: Quoted from the filing itself, not independently verified.

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://ago.vermont.gov/document/2022-03-17-mattson-technology-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 17, 2022
Raw hash: 3578d0b665a88d79f64275dd895fc0c1c01fa9fc3b228a3f1be83dbcdb063bb8

Reporting entityMattson Technology, Inc.

Victim entityMattson Technology, Inc.

IncidentPhishing

Stated responseMoved quickly to respond and investigate the event

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov