Stücheli Architekten
bd_2e807184d2df6f8a · schema v1 · pii pii-v1
Full breach record for Stücheli Architekten →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Payload 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
Stücheli Architekten is a renowned Swiss architectural firm founded in Zurich back in 1946. The company specializes in the design and execution of complex architectural projects, including residential buildings, office complexes, and public spaces, combining innovation with tradition and sustainable construction. It provides a full range of architectural services and frequently acts as a general planner for major projects both in Switzerland and internationally.
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Incident timeline — mostly unverified
? — ?
Breach window unknown
Aug 11, 2026
Claim posted
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No filing yet · watching
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
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.
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.
payload
According to ransomware.live, Payload is a ransomware group that emerged in early 2026, using Babuk-derived source code targeting both Windows and ESXi systems with cross-platform double-extortion attacks against healthcare, energy, real estate, and agriculture sectors, claiming 12 victims across seven countries within hours of launching its leak site.