HackingManufacturingManufacturingCustomer Data InvolvedPIIIdentity (basic)LowContained

Simpson Strong-Tie

bd_e9b36fbacf8cf751 · schema v1 · pii pii-v1

Severity

Low

Discovered

Oct 10, 2023

Filed

Mar 21, 2024

To disclose

23 weeks

Affected

Not disclosed

Linked

6 filings

Confidence

64%

Full breach record for Simpson Strong-Tie →

Simpson Strong-Tie Co. Inc. notified the California Attorney General of a data breach where an unknown third party accessed its IT infrastructure from October 9-11, 2023. The company discovered the incident on October 10, 2023. Personal information, including identity data, was accessed. The company secured its environment, reset passwords, enhanced monitoring, and offered two years of credit monitoring to affected individuals.

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California clockDiscovered Oct 10, 2023 → Notified Mar 19, 2024161d ✗ CA 60-day late23 weeks discovery → filing

Incident timeline

undetected · 1 days

discovery → filing · 23 weeks / 163 days

Oct 9, 2023

Begins

Oct 10, 2023

Discovered

Mar 21, 2024

Filed

This filing is one of 6 about the same incident.View merged incident

A leak claim by black_basta about this victim predates this filing by 163 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Siteblack_bastabd_7db4a65669e33ced2023-11-01 · +140dVerified by operator
Leak Siteblack_bastabd_9328fe78dbf8d5792023-10-10 · +163dVerified by operator

Regulatory filings (3) · sorted by filing gap

Maine State AGbd_93a5b96dd2b5cdf32024-03-21Candidate
Massachusetts State AGbd_e98ba9a53f8bd87a2024-03-23 · +2dVerified by operator
Indiana State AGbd_2c6394bc161722182024-03-19 · +2dVerified

Name: Simpson Strong-Tie
norm: simpson strong tie
Domain: strongtie.com

Name: Simpson Strong-Tie
norm: simpson strong tie
Domain: strongtie.com
Industry: Manufacturingllm

Discovered: Oct 10, 2023
Breach occurred: Oct 9, 2023 – Oct 11, 2023
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: Mar 19, 2024
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified federal law enforcement

During the incident: Immediately took steps to secure our environment
Launched an investigation with the support of external cybersecurity experts
Disclosed the incident publicly in an 8-K on October 11, 2023
Notified federal law enforcement the same day
Blocking all known indicators of compromise
Conducting an enterprise-wide password reset
Enhancing our security monitoring and logging capabilities
Reviewing the account permissions for both administrative and standard user accounts and further restricting access rights where appropriate
Changes made: Evaluating whether additional security enhancements are warranted
Offering complimentary two-year credit and identity monitoring services through Experian IdentityWorks
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 23 weeks(163 days from discovery to filing)
Compliance flags: CA 60-day late · 161dLeak >90d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Oct 10, 2023
→ Notified: Mar 19, 2024
161d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Oct 10, 2023 → Notified: Mar 19, 2024	161d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Indiana State AGMar 19 · first

Maine State AG+2d

California State AG+2d · this page

Massachusetts 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://oag.ca.gov/ecrime/databreach/reports/sb24-582877
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 21, 2024
Raw hash: 267b1ea874a471aff049dcd4a025492ff2bc855ee02198c51ee5d925777879a9

Linked disclosures

Ransomware claims (2)

Regulatory filings (3) · sorted by filing gap

Reporting entitySimpson Strong-Tie

Victim entitySimpson Strong-Tie

Incidentdiscovered Oct 10, 2023

Stated responseImmediately took steps to secure our environment

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov