DisclosureLens
GLOBALMalwareConstructionConstructionRansomwareSinobiRansom DemandedActor NamedMedium

Croft

bd_0eb4b9039d11038e · schema v1 · pii pii-v1

Severity

Medium

Discovered

Filed

Nov 19, 2025

To disclose

Affected

Not disclosed

Confidence

50%
Full breach record for Croft

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Sinobi 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.

Group activity: ConstructionDiscovered: 2025-11-19

Source: Ransomware.live

Post text · scraped from the leak site

Croft is a leading window and door company specializing in energy-efficient vinyl and aluminum products, including a variety of windows and patio doors. With a commitment to quality and innovation, the company has built a reputation as one of the largest and most reliable suppliers in the industry since its establishment in 1920. Croft's offerings are designed to enhance comfort and energy savings for homeowners, making them an ideal choice for those seeking high-performance solutions. The company caters to both individual customers and certified dealers in the market.

Incident timeline — mostly unverified

? — ?

Breach window unknown

Nov 19, 2025

Claim posted

No filing yet · watching

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

Claim → filing

Compliance clock

Not assessable

Tracked as a single-filing incident — the only disclosure on record for this event so far.Unverified claimView incident

Evidence ladder

Leak-site claimThis record

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filing

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

No regulatory filing corroborates this yet — it is the attacker's own assertion. Watch this entity to be notified the moment a filing corroborates or contradicts it.

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.

About this groupFirst seen 2025-03-24

sinobi

According to ransomware.live, Sinobi is a private vetted-affiliate RaaS group that emerged in mid-2025, believed to be a rebrand of the Lynx/INC ransomware lineage, claiming 176 victims by end of 2025 through double-extortion attacks primarily against mid-market US organizations via compromised SonicWall VPN credentials.

274 victims claimed globally274 tracked hereFull profile →