Ransomware needs a way in. Stolen credentials are the cheapest one.

ECF, Inc. Ransomware Attack

Ransomware victimRansomed

interlockGroup

United StatesCountry

Oct 12, 2026Discovered

Overview

View group profile

Industry

Energy & Utilities

Country

United States

Discovered

3 days ago

Attack date

Oct 12, 2026

Confidence

85%

Severity

Medium

Status

Claimed

Threat group

interlock

Total victims

First seen

Oct 2025

Last seen

Oct 2026

Group status

active

Sophistication

Impact score

Threat level

5.7/10

Aggressiveness10/10

Lethality1.1/10

Criticality6.1/10

Status breakdown

Data Leaked22.4%15

Claimed

this victim

77.6%52

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

Energy & Utilities

Known target sector

Country

United States

Frequently targeted country

Other victims

View all (67)

Same group · interlock

Group activity

Monthly attacks · interlock

total · avg 5.2/mo