Amerinational Management Services (AMS) Ransomware Attack

ourams.com

sinobiGroup

United StatesCountry

Mar 19, 2026Discovered

Overview

View group profile

Domain

ourams.com

Industry

Professional Services

Country

United States

Discovered

4 months ago

Attack date

Mar 17, 2026

Confidence

100%

Severity

Medium

Status

Claimed

Threat group

sinobi

Total victims

262

First seen

Jul 2025

Last seen

May 2026

Group status

active

Sophistication

Impact score

Threat level

2.6/10

Aggressiveness5/10

Lethality0/10

Criticality2.7/10

Status breakdown

Claimed

this victim

100.0%262

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 (262)

Same group · sinobi

Neurotrials Research Inc
United States
Claimed
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United States
Claimed
Unre3d
China
Claimed
Bay State Land Services
United States
Claimed
Celeris Networks
United States
Claimed
Positiwise Infotech Pvt
India
Claimed

Group activity

Monthly attacks · sinobi

262

total · avg 26.2/mo