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fortsmithar.gov

Ransomware group interlock hits City of Fort Smith Arkansas

MEDIUM
·Government & Defense·US·2026-09-15

City of Fort Smith Arkansas — a government & defense target operating in US has been listed by the interlock ransomware group on 2026-09-15. The information below reflects what the threat actor has publicly claimed on their leak site; the details have not been independently verified.

Incident Report

Target OrganizationCity of Fort Smith Arkansas
Threat Group
interlock
SummaryThe City of Fort Smith is committed to providing high-quality, resident-focused services to foster a thriving community. This is how they try to position themselves, but in reality, they are very negligent towards their residents and organizations within the city due to their negligent attitude towards security and lack of desire to solve problems, were compromised resulting in a major leak of confidential data over 5.6 TB of data, which includes key infrastructure facilities of Fort Smith (Public Safety System: Police Station, Fire Department, Communications Center (responsible for the 911 emergency dispatch service), Water System: including numerous water and sewer treatment plants, Information Systems: computer systems and networks that support the operation of various departments of the city). As a result of a major leak of the city, you are provided with databases and documents of all their structures (Police and Crime Information: The Arkansas Crime Information Center and the FBI Criminal Justice Information Service system are available information on license plates and driver's licenses, Confidential law enforcement data, such as personally identifiable information (PII), such as Names, addresses, and phone numbers of residents.) More than 100,000 SSNs, reports and police station files with photos from the reports, as well as software used by cyberpolice to work with phone data, as well as reports and dumps of people's phones, and most importantly, their data on the water supply system and a complete database of 911 calls and incidents.
Date of Breach2026-09-15
Discovery Date2026-09-15
RegionUS
Target Domainfortsmithar.gov
Business SectorGovernment & Defense
Severity
MEDIUM

Claim by interlock

The City of Fort Smith is committed to providing high-quality, resident-focused services to foster a thriving community. This is how they try to position themselves, but in reality, they are very negligent towards their residents and organizations within the city due to their negligent attitude towards security and lack of desire to solve problems, were compromised resulting in a major leak of confidential data over 5.6 TB of data, which includes key infrastructure facilities of Fort Smith (Public Safety System: Police Station, Fire Department, Communications Center (responsible for the 911 emergency dispatch service), Water System: including numerous water and sewer treatment plants, Information Systems: computer systems and networks that support the operation of various departments of the city). As a result of a major leak of the city, you are provided with databases and documents of all their structures (Police and Crime Information: The Arkansas Crime Information Center and the FBI Criminal Justice Information Service system are available information on license plates and driver's licenses, Confidential law enforcement data, such as personally identifiable information (PII), such as Names, addresses, and phone numbers of residents.) More than 100,000 SSNs, reports and police station files with photos from the reports, as well as software used by cyberpolice to work with phone data, as well as reports and dumps of people's phones, and most importantly, their data on the water supply system and a complete database of 911 calls and incidents.

Posted by the interlock threat actor on its public leak site. This is the group's own statement and has not been independently verified by HackerFeeds.

Sources

Victim website

fortsmithar.gov

Leak post (onion / Tor)

tor

http://dcwatuq6kzwj5i2sx7f2cx5hud2ryo3cnm6n6j2r6am57qskfqvdpeqd.onion/index.php?p=

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