DisclosureLens
GLOBALMalwareProfessional ServicesProfessional ServicesRansomwareDark ProjectRansom DemandedActor NamedData Leak ThreatenedData PublishedHigh

MZ Architects

bd_6b8bcd2b35b2093b · schema v1 · pii pii-v2

Severity

High

Discovered

—

Filed

Sep 7, 2026

To disclose

—

Affected

Not disclosed

Confidence

50%
Full breach record for MZ Architects →2 incidents on file

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Dark Project 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: Professional ServicesDiscovered: 2026-09-07
View aggregator listing on ransomware.live

Source: Ransomware.live

Post text · scraped from the leak site

About MEI Architects MEI Architects is a firm based in San Francisco that specializes in commercial, residential, and public architecture. They provide elegant and pragmatic solutions tailored for government, nonprofit, and private clients. Their portfolio includes notable projects such as the Portsmouth Square Improvement Project and the VA Palo Alto Polytrauma Aquatic Therapy Center. The firm is committed to community-minded design and successful partnerships. As a result of the attack, 340 GB of data (approximately 130,000 files) was stolen: including Social Security numbers, passports, green cards, invoices, HR documents, and a vast number of architectural drawings—including those from past and current projects, as well as those currently under construction.

Incident timeline — mostly unverified

? — ?

Breach window unknown

Sep 7, 2026

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.