Ransomware Intelligence

Efficy - 43gb leaked Ransomware Attack

efficy.com

coinbase cartelGroup

BelgiumCountry

Mar 30, 2026Discovered

Overview

View group profile

Domain

efficy.com

Industry

Technology

Country

Belgium

Discovered

4 months ago

Confidence

85%

Severity

Medium

Status

Claimed

Threat group

coinbase cartel

Total victims

89

First seen

Sep 2025

Last seen

Jul 2026

Group status

active

Sophistication

0

Impact score

81

Threat level

2.1/10

Aggressiveness5/10

Lethality0/10

Criticality1.1/10

Status breakdown

Claimed

this victim

92.1%82

Targeted sectors

Education Energy & Utilities Financial Services Government & Defense Healthcare Hospitality Manufacturing Other Professional Services Retail & E-Commerce Technology Transportation

Victim's position within group

Industry

Technology

Known target sector

Country

Belgium

Frequently targeted country

Other victims

Same group · coinbase cartel

Group activity

Monthly attacks · coinbase cartel

89

total · avg 8.1/mo