Ransomware Intelligence

J Grennan & Sons Ransomware Attack

grennans.ie

akiraGroup

IrelandCountry

Dec 24, 2025Discovered

Overview

View group profile

Domain

grennans.ie

Industry

Other

Country

Ireland

Discovered

8 months ago

Attack date

Dec 24, 2025

Confidence

100%

Severity

Medium

Status

Claimed

Threat group

Total victims

627

First seen

Aug 2025

Last seen

Jul 2026

Group status

active

Sophistication

0

Impact score

88

Threat level

2/10

Aggressiveness5/10

Lethality0/10

Criticality1/10

Status breakdown

Data Leaked2.7%17

Negotiating0.2%1

Claimed

this victim

97.1%609

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

Same group · akira

Group activity

Monthly attacks · akira

627

total · avg 52.3/mo