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O2 Dental Group Ransomware Attack

o2smiles.comRansomed

interlockGroup

United StatesCountry

Oct 5, 2026Discovered

Overview

View group profile

Domain

o2smiles.com

Industry

Healthcare

Country

United States

Discovered

1 day ago

Attack date

Oct 5, 2026

Confidence

85%

Severity

Medium

Status

Claimed

Threat group

interlock

Total victims

First seen

Oct 2025

Last seen

Oct 2026

Group status

active

Sophistication

Impact score

Threat level

4.9/10

Aggressiveness8/10

Lethality0.9/10

Criticality5.9/10

Status breakdown

Data Leaked18.0%11

Claimed

this victim

82.0%50

Targeted sectors

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

Victim's position within group

Industry

Healthcare

Known target sector

Country

United States

Frequently targeted country

Other victims

View all (61)

Same group · interlock

Group activity

Monthly attacks · interlock

total · avg 4.7/mo