Nash Brothers Construction
bd_6217337637814b82 · schema v1 · pii pii-v1
Full breach record for Nash Brothers Construction →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group BianLian 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
Nash Brothers' focus is underground utility construction across the electrical, gas, telecommunications and fiber markets. Nash Brothers has existed as an independent family-owned company for nearly 120 years.
J jump to incidentP pin to compareR raw source
Incident timeline — mostly unverified
? — ?
Breach window unknown
Jan 13, 2025
Claim posted
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Corroborated · see linked filings
This record's own dates cannot anchor compliance clocks; see the linked filings.
Claim → filing
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Compliance clock
Not assessable
Linked disclosures
Why this link?Regulatory filings (3) · sorted by filing gap
- Illinois State AGbd_eb35b54502ca8fd72025-06-01 · +138dVerified by operator
- Indiana State AGbd_5849bd6602e35e5b2025-06-10 · +147dCandidate
- Massachusetts State AGbd_b65a7185ded3c0302025-06-12 · +149dVerified
Filing propagation · 3 filings · 3 states
View merged incident ↗Pattern: first filing Jun 1 (IL), last Jun 12 (MA) — a 11-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.
bianlian
According to ransomware.live, BianLian ransomware operations began in late 2021. The group practices multi-pronged extortion, demanding payment for a decryptor, as well as the non-release of stolen data. The ransomware group hosts a public, TOR-based, blog to post victim identities and stolen data. Somewhat unique to BianLian at the time of their launch was their inclusion of an I2P mirror for their blog.