HackingTechnologyManufacturingInformationDelayed DiscoveryMulti-Stage ChainPIIIdentity (basic)Government IDMediumContained

Murata Power Solutions, Inc.

bd_24d9552866c3c771 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 28, 2026

Filed

Jun 8, 2026

To disclose

13 weeks

Affected

Not disclosed

Confidence

64%

Full breach record for Murata Power Solutions, Inc. →

Murata Power Solutions, Inc. notified Massachusetts residents of a data breach where unauthorized third-party access occurred between March 2025 and February 2026. Discovered on Feb 28, 2026, the incident involved sensitive personal information. Murata engaged Kroll for forensic investigation and identity monitoring services. No evidence of misuse was found at the time of notification.

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Massachusetts clock✗ MA AG >90d13 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 364 days

discovery → filing · 14 weeks / 100 days

Mar 1, 2025

Begins

Feb 28, 2026

Discovered

Jun 8, 2026

Filed

vs. sector median

5 wks faster

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

Name: Murata Power Solutions, Inc.
norm: murata power

Name: Murata Power Solutions, Inc.
norm: murata power
Industry: TechnologyllmManufacturingllm

Discovered: Feb 28, 2026
Breach occurred: Mar 1, 2025 – Feb 28, 2026
Undetected for: 364 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 1, 2026
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)Government ID
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: Blocked external access to the network
Engaged a specialized third-party cybersecurity firm (Kroll) to assist with securing the environment and conduct a comprehensive forensic investigation
Enhanced its security measures
Changes made: Enhanced security measures
Provided 24 months of complimentary identity monitoring services through Kroll
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 13 weeks(93 days from discovery to filing)
Compliance flags: MA AG >90d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

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://www.mass.gov/doc/2026-923-murata-power-solutions/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 8, 2026
Raw hash: 32a7dfdb97ce82516060af6f6cdfe2d998034a2c643d64243bccb83e82e43c25

Reporting entityMurata Power Solutions, Inc.

Victim entityMurata Power Solutions, Inc.

Incidentdiscovered Feb 28, 2026

Stated responseBlocked external access to the network

ComplianceMA AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov