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Sileno Companies Inc Ransomware Attack

sileno.comRansomed

tenguGroup

SwitzerlandCountry

Mar 7, 2026Discovered

Overview

View group profile

Domain

sileno.com

Industry

Manufacturing

Country

Switzerland

Discovered

5 months ago

Attack date

Mar 7, 2026

Confidence

100%

Severity

Medium

Status

Claimed

Threat group

tengu

Total victims

First seen

Oct 2025

Last seen

Mar 2026

Group status

active

Sophistication

Impact score

Threat level

2.2/10

Aggressiveness5/10

Lethality0.1/10

Criticality1.4/10

Status breakdown

Data Leaked1.9%1

Claimed

this victim

98.1%51

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

View all (52)

Same group · tengu

crown-security.com.tw
Taiwan
Claimed
Sileno Companies Inc
Switzerland
Claimed
communitymosaic.co.uk
United Kingdom
Claimed
Eos Technology srl
Italy
Claimed
DAINTY CLOUD INC
United States
Claimed
Al Arif Contracting Co. (L.L.C)
United Arab Emirates
Claimed

Group activity

Monthly attacks · tengu

total · avg 8.7/mo