HackingEnergy & UtilitiesUtilitiesStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Mansfield Energy

bd_9b0bb4b8343be78f · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 1, 2019

Filed

Aug 1, 2019

To disclose

13 weeks

Affected

1state residents only

Linked

3 filings

Confidence

67%

Full breach record for Mansfield Energy →2 incidents on file

Mansfield Energy Corp. notified the New Hampshire Attorney General on August 1, 2019, regarding a data security incident discovered on May 1, 2019. An employee's email account containing personal information was accessed without authorization. The investigation determined that the name, address, and Social Security number of one New Hampshire resident were potentially exposed. Mansfield engaged a document review vendor, notified the FBI, and provided 12 months of complimentary credit monitoring and identity restoration services through Kroll.

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Incident timeline

discovery → filing · 13 weeks / 92 days

May 1, 2019

Discovered

Aug 1, 2019

Filed

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_c7b8f844b93535dc2019-08-01Verified
South Carolina State AGbd_1a255a2e7272580f2019-08-05 · +4dVerified

Name: Mansfield Energy
norm: mansfield energy
Domain: mansfield.energy

Name: Mansfield Energy
norm: mansfield energy
Domain: mansfield.energy
Industry: Energy & Utilitiesllm

Discovered: May 1, 2019
Materiality determined: —
Notification sent: Jul 31, 2019
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified the FBI
Initial access: valid_credentials

During the incident: Engaged a document review vendor to search the contents of the account
Notified the FBI
Provided twelve (12) months of complimentary credit monitoring and identity restoration services through Kroll
Changes made: Working with leading cybersecurity experts to enhance the security of its digital environment
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 13 weeks(92 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Massachusetts State AGAug 1 · first

New Hampshire State AGAug 1 · first · this page

South Carolina State AG+4d

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/mansfield-energy-20190801.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 1, 2019
Raw hash: d0c7c08776a70f747f2f84bad4f4a3c4acb6580eee83580d6f6fd4533bbd7bab

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityMansfield Energy

Victim entityMansfield Energy

Incidentdiscovered May 1, 2019

Stated responseEngaged a document review vendor to search the contents of the account

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov