Efficy - 43gb leaked
bd_e6ef8a901c4b0fb7 · schema v1 · pii pii-v1
Full breach record for Efficy - 43gb leaked →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Coinbasecartel 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
Efficy is a Belgian company that specializes in developing CRM (Customer Relationship Management) software solutions for businesses to improve customer service and streamline sales processes. They offer tools for managing contacts, sales, customer support, etc. However, the term "43gb leaked" seems to reference a cyber attack or data breach incident, implying there could have been a significant leak of data from the company.
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Incident timeline — mostly unverified
? — ?
Breach window unknown
Mar 30, 2026
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?Ransomware claims (1)
- Leak Sitecoinbasecartelbd_c47d815b41b01a482026-02-16 · +42dCandidate
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.
coinbasecartel
According to ransomware.live, CoinbaseCartel specializes in data acquisition through system access and strategic partnerships. It focus exclusively on data exfiltration—our operations never involve system encryption or operational disruption.