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AECOM Ransomware Attack
aecom.comRansomed
Overview
View group profileDomain
aecom.com
Industry
Professional Services
Country
United States
Discovered
about 20 hours ago
Attack date
Sep 17, 2026
Confidence
85%
Severity
Medium
Status
Claimed
Threat group
Brain Cipher RansomwareTotal victims
49
First seen
Oct 2025
Last seen
Sep 2026
Group status
active
Sophistication
0
Impact score
70
Threat level
4.3/10Aggressiveness8/10
Lethality1.3/10
Criticality3.5/10
Status breakdown
Data Leaked28.6%14
Claimed
this victim
71.4%35Victim's position within group
Industry
Professional Services
Known target sector
Country
United States
Frequently targeted country
Other victims
View all (49)Same group · Brain Cipher Ransomware
Group activity
Monthly attacks · Brain Cipher Ransomware
49
total · avg 4.9/mo