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

J Grennan & Sons Ransomware Attack

grennans.ieRansomed

akiraGroup

IrelandCountry

Dec 24, 2025Discovered

Overview

View group profile

Domain

grennans.ie

Industry

Other

Country

Ireland

Discovered

9 months ago

Attack date

Dec 24, 2025

Confidence

100%

Severity

Medium

Status

Claimed

Threat group

akira

Total victims

582

First seen

Sep 2025

Last seen

Sep 2026

Group status

active

Sophistication

Impact score

Threat level

2/10

Aggressiveness5/10

Lethality0/10

Criticality1/10

Status breakdown

Data Leaked0.9%5

Negotiating0.2%1

Claimed

this victim

98.9%521

Targeted sectors

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

Victim's position within group

Industry

Other

Known target sector

Country

Ireland

Frequently targeted country

Other victims

View all (527)

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Group activity

Monthly attacks · akira

582

total · avg 44.8/mo