Case file: Simpson Manufacturing Co., Inc.
Every government filing on this incident, the dates as stated, and the days to notice against each state's statute. Built from the records on Nov 15, 2026, agency link on every row. Not legal advice.
The incident
- Breach window
- Oct 10, 2023
- Discovered
- No discovery date stated in the letters we read
- First public signal
- Oct 11, 2023, when Simpson Manufacturing Co., Inc. told investors of a cyber incident in an SEC Form 8-K (Item 8.01). No agency record of the incident is on file yet
- State and federal records
- 2 filings, Oct 11, 2023 to Oct 19, 2023
- Residents counted
- No state publishes a resident count for this incident
- Everyone affected
- No filing gives a total
- Information exposed
- Financial / bank account, Postal address
- Offered to those affected
- No monitoring offer found in the letters we read
- Third party named
- Yes, the letter attributes the incident to a vendor or service provider
The investor filing: Form 8-K of Oct 11, 2023. An 8-K is tied to the incident by the company and the dates, so read it before relying on it. It says: "On October 10, 2023, Simpson Manufacturing Co., Inc. (the “Company”) experienced disruptions in its Information Technology (IT) infrastructure and applications resulting from a cybersecurity incident. After becoming aware of the malicious activity, the Company began taking steps to stop and remediate the activity, including taking certain systems offline."
Filings
| Agency | Record date | People | In total | Days to notice | Links |
|---|---|---|---|---|---|
| SEC Form 8-K SEC Form 8-K | Oct 19, 2023 | Not published | 9 days from breach end | 8-K Record | |
| SEC Form 8-K SEC Form 8-K | Oct 11, 2023 | Not published | 1 days from breach end | 8-K Record |
People is the count the filing gives, residents of the state unless marked total. Days to notice runs from the discovery date the letter states, or from the end of the breach window when no letter states one, to the date on the state's first record of the incident. "Over" marks a count past the days the state's statute allows for notice to residents. The statute's trigger is a question of fact, the days are arithmetic.
Sources and method
Records as published by SEC Form 8-K. Letter facts (discovery date, monitoring, third party) are read from the consumer letter the agency posted, 2 letters read for this incident, and quoted so you can check them. Texas and HHS publish no letters. First-seen times on each record page. Spot an error? Email support@breachtally.com with this page link.