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

Amerinational Management Services, Inc. Ransomware Attack

ourams.comRansomed

sinobiGroup

United StatesCountry

Mar 19, 2026Discovered

Overview

View group profile

Domain

ourams.com

Industry

Professional Services

Country

United States

Discovered

6 months ago

Attack date

Mar 17, 2026

Confidence

100%

Severity

Medium

Status

Claimed

Threat group

sinobi

Total victims

224

First seen

Sep 2025

Last seen

May 2026

Group status

active

Sophistication

Impact score

Threat level

2.6/10

Aggressiveness5/10

Lethality0/10

Criticality2.8/10

Status breakdown

Claimed

this victim

100.0%224

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

Professional Services

Known target sector

Country

United States

Frequently targeted country

Other victims

View all (224)

Same group · sinobi

Group activity

Monthly attacks · sinobi

224

total · avg 28/mo