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SILENO Ransomware Attack

sileno.comRansomed

tenguGroup

SwitzerlandCountry

Mar 7, 2026Discovered

Overview

View group profile

Domain

sileno.com

Industry

Manufacturing

Country

Switzerland

Discovered

6 months ago

Attack date

Mar 7, 2026

Confidence

100%

Severity

Medium

Status

Claimed

Threat group

Total victims

50

First seen

Oct 2025

Last seen

Mar 2026

Group status

active

Sophistication

0

Impact score

65

Threat level

2.2/10

Aggressiveness5/10

Lethality0.1/10

Criticality1.4/10

Status breakdown

Data Leaked2.0%1

Claimed

this victim

98.0%49

Targeted sectors

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

Victim's position within group

Industry

Manufacturing

Known target sector

Country

Switzerland

Frequently targeted country

Other victims

Same group · tengu

Group activity