HackingManufacturingManufacturingStolen CredentialsCustomer Data InvolvedPIIIdentity (basic)LowContained

CORNERSTONE BUILDING BRANDS, INC.

bd_387bdc6cec92f206 · schema v1 · pii pii-v1

Severity

Low

Discovered

—

Filed

Sep 11, 2019

To disclose

—

Affected

Not disclosed

Linked

4 filings

Confidence

65%

Full breach record for CORNERSTONE BUILDING BRANDS, INC. →3 incidents on file

Cornerstone Building Brands, Inc. reported that an unauthorized person accessed two employees' email accounts between April 1 and April 2, 2019. The investigation determined that personal information, including names and addresses, may have been accessed or viewed. The company secured the accounts, engaged a cybersecurity firm, and offered one year of identity monitoring services to affected individuals.

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Incident timeline

Apr 1, 2019

Begins

Sep 11, 2019

Filed

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_b2d3a9294f08d9a82019-09-11Verified
Montana State AGbd_c14cf158c86f17702019-09-11Candidate
New Hampshire State AGbd_72b5212b6bcca4aa2019-09-10 · +1dVerified

Name: CORNERSTONE BUILDING BRANDS, INC.
norm: cornerstone building brands

Name: CORNERSTONE BUILDING BRANDS, INC.
norm: cornerstone building brands
Industry: Manufacturingllm

Discovered: —
Breach occurred: Apr 1, 2019 – Apr 2, 2019
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1114 Email CollectionT1078 Valid Accounts
Threat actor: External

During the incident: Immediately took steps to secure the accounts
Launched an investigation
Engaged a cybersecurity firm to assist
Arranged for Kroll to provide identity monitoring services at no cost to you for one year
Changes made: Providing additional data-security training to employees
Enhancing existing security measures
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.

Filing propagation · 4 filings · 4 states

View merged incident ↗

New Hampshire State AGSep 10 · first

Massachusetts State AG+1d

Montana State AG+1d

California State AG+1d · 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://oag.ca.gov/ecrime/databreach/reports/sb24-150471
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 11, 2019
Raw hash: fd1e5d1cc7039c3fc2fd5859de5f9970ba0827b19c257e656e03131e281c16a4

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityCORNERSTONE BUILDING BRANDS, INC.

Victim entityCORNERSTONE BUILDING BRANDS, INC.

IncidentUnauthorized Access

Stated responseImmediately took steps to secure the accounts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov