Olson & Co Steel
bd_04e551dd449abdd4 · schema v1 · pii pii-v1
Full breach record for Olson & Co Steel →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Black Basta on its public extortion blog. It has not been validated by the victim or any regulator. Treat attribution and counts as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.
Source: Ransomware.live
Post text · scraped from the leak site
Olson & Co. Steel is a premier steel contractor that provides steel fabrication, erection, and specialty construction services. The company was formed in 2002 from the consolidation of Bostrom Bergen Metal Products and Meddco Metals, and has a long history of serving the construction industry since 1960. Olson & Co. Steel has completed various specialty projects, including the Potrero Power Station A Building, Santa Clara Valley Medical Center Art Feature, Massy House, Hangar 3 Timber Repair Scaffold and Shoring Tower, Orbital Art Feature, Stanford Central Campus Process Steam System, U.C Davis Brewery, Saint Peter & Paul Church, Stanley Mosk Library & Courts, San Jose Southside Police Station, Geneva Car Enclosure (Butler), California Dairies Plant 7, California Dairies Visalia Plant, Keyes Ethanol Plant, and Pixley Ethanol. The company is a market leader in bringing technology to its detailing, fabrication, and erection processes, and strives for innovation and continuous improvement.SITE: www.olsonsteel.com Address : 1941 Davis Street, San Leandro, CA, 94577 USAALL DATA SIZE: ≈900gb 1. Company data: HR, Accounting and etc... 2. Employees, users data + personal documents 3. Projects and CAD, Confidetial documents and drawings And much more...
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Incident timeline — mostly unverified
? — ?
Breach window unknown
May 7, 2024
Claim posted
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Corroborated · see linked filings
Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.
Claim → filing
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Compliance clock
Not assessable
Linked disclosures
Why this link?Regulatory filings (2) · sorted by filing gap
- New Hampshire State AGbd_53aee42e944086662024-07-03 · +57dVerified
- California State AGbd_ecb185b9a9ba31fc2024-07-03 · +57dVerified by operator
Filing propagation · 3 filings · 2 states
View merged incident ↗Pattern: first filing May 7, last Jul 3 (CA) — a 57-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.
Source ceiling
- actor name
- victim claim
- ransom/leak status
- discovery date
- materiality
- notification
- affected count
- confirmed data types
- compliance clock
The ✕ fields stay blank until a regulatory filing or victim disclosure lands.