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Efficy Ransomware Attack

efficy.comData extortion

coinbase cartelGroup

BelgiumCountry

Mar 30, 2026Discovered

Overview

View group profile

Domain

efficy.com

Industry

Technology

Country

Belgium

Discovered

5 months ago

Confidence

85%

Severity

Medium

Status

Claimed

Threat group

coinbase cartel

Total victims

84

First seen

Sep 2025

Last seen

Jul 2026

Group status

active

Sophistication

0

Impact score

84

Threat level

2.1/10

Aggressiveness5/10

Lethality0/10

Criticality1/10

Status breakdown

Claimed

this victim

100.0%84

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

84

total · avg 7.6/mo