HackingData ExfiltratedCustomer Data InvolvedPIIIDENTITY_BASICLowContained
MASTEC, INC.
bd_fa5d678c3d216037 · schema v1 · pii pii-v1
Full breach record for MASTEC, INC. →MasTec, Inc. disclosed a data breach in Massachusetts (filing 2026-932) affecting at least 73 Rhode Island residents, with notifications sent to individuals in multiple states. The incident occurred in August 2025, involving unauthorized access to a portion of the network. Personal information was accessed, and MasTec offered credit monitoring services.
Massachusetts clock✗ MA AG >90d35 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.
This filing is one of 5 about the same incident.View merged incident
Linked disclosures
Why this link?Regulatory filings (4) · sorted by filing gap
- bd_9a55bbe733ae71cbNew Hampshire State AGfiled 2026-06-04(3d gap)Candidate
- bd_17006039c927389dVermont State AGfiled 2026-06-05(4d gap)Verified
- bd_2337a1feed74d7a4Indiana State AGfiled 2026-06-05(4d gap)Verified
- bd_d93b0d10e9a7baaeSouth Carolina State AGfiled 2026-06-05(4d gap)Verified
Source provenance
- Source URL
- https://www.mass.gov/doc/2026-932-mastec/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Jun 1, 2026
- Raw hash
- ff5bba25c98ab12ff0754ae5e14e088ee56b6ed98a6b2ea9c9a40de1e2c62093
Reporting entity
- Name
- MASTEC, INC.norm: mastec
Victim entity
- Name
- MASTEC, INC.norm: mastec
Incident
- Discovered
- Oct 1, 2025
- Materiality determined
- —
- Notification sent
- May 11, 2026
- Affected individuals
- 73
- Data types
- PIIIDENTITY_BASIC
- Attack vector
- Unauthorized Access
- MITRE ATT&CK
- T1190 Exploit Public-Facing Application
- Threat actor
- External
- Initial access
- exploit_public_facing
Compliance
- Time to disclose
- 35 weeks(243 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.
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.