Ransomware needs a way in. Stolen credentials are the cheapest one.
Rossum Ransomware Attack
rossum.skRansomed
Overview
View group profileDomain
rossum.sk
Industry
Professional Services
Country
Slovakia
Discovered
3 months ago
Attack date
Jul 1, 2026
Confidence
85%
Severity
Medium
Status
Claimed
Threat group
qilinTotal victims
1,473
First seen
Sep 2025
Last seen
Sep 2026
Group status
active
Sophistication
0
Impact score
123
Threat level
3.9/10Aggressiveness10/10
Lethality0/10
Criticality1.2/10
Status breakdown
Data Leaked0.5%7
Claimed
this victim
99.5%1,478Victim's position within group
Industry
Professional Services
Known target sector
Country
Slovakia
Frequently targeted country
Other victims
View all (1485)Same group · qilin
Group activity
Monthly attacks · qilin
1,473
total · avg 113.3/mo