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GuestTek Ransomware Attack

guesttek.comRansomed

tridentlockerGroup

CanadaCountry

Nov 29, 2025Discovered

Overview

View group profile

Domain

guesttek.com

Industry

Technology

Country

Canada

Discovered

10 months ago

Attack date

Nov 20, 2025

Confidence

100%

Severity

Medium

Status

Claimed

Threat group

tridentlocker

Total victims

First seen

Oct 2025

Last seen

Sep 2026

Group status

active

Sophistication

Impact score

Threat level

1.5/10

Aggressiveness4.3/10

Lethality0/10

Criticality0/10

Status breakdown

Claimed

this victim

100.0%17

Targeted sectors

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

Victim's position within group

Industry

Technology

Known target sector

Country

Canada

Frequently targeted country

Other victims

View all (17)

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United States
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Claimed
Eco Green Group
United Kingdom
Claimed
Sedgwick Government Solutions
United States
Claimed

Group activity

Monthly attacks · tridentlocker

total · avg 2.1/mo