Centre de services scolaire des Appalaches (CSSA)
August 25, 2025
•[ ransomware, education ]
INC carried out a ransomware attack on CSSA on August 25, 2025, encrypting about 70% of archives and exfiltrating ~180 GB of data. Stolen data included personal records of students and staff, plus organizational financial, legal, and administrative documents. The incident lasted days to weeks before being publicly disclosed on September 3.
Miljödata
August 25, 2025
•[ ransomware, leak, malware ]
In August 2025, the Swedish system supplier Miljdata was the victim of a ransomware attack. Following the attack, data was subsequently published on the dark web and included 870k unique email addresses across various compromised files. Data also included names, phone numbers, physical addresses, dates of birth and government-issued personal identity numbers.
Elche City Council
August 25, 2025
•[ ransomware, malware, government ]
Ransomware attack crippled the Elche City Councils operations, affecting Finance, Social Services, and the Mayor's Office; ~1,500 devices were shut down. Emergency manual protocols were activated. A full recovery plan is underway with 4.5 million allocated.
Nevada State Government (multiple agencies)
August 24, 2025
•[ ransomware, malware, government ]
State described a ransomware-based attack discovered Aug 24 that forced two-day office closures and knocked multiple agency websites/phones offline; CIO confirmed some state data was exfiltrated, but nature/volume unknown; no actor has claimed responsibility.
Reno Department of Motor Vehicles
August 24, 2025
•[ ransomware, data leak ]
A ransomware attack against Nevada state government systems disrupted public services, and the Reno-area DMV continued to experience connectivity issues nearly two weeks later. DMV officials stated that drivers license transactions were impacted and first-time Real ID issuance was unavailable at the time of reporting, while some renewals and other transactions could proceed. State officials also publicly acknowledged evidence of some data being exfiltrated from the state network during the broader incident, though details were not tied to DMV systems in the sourced updates.
Miljödata (IT supplier for municipalities)
August 23, 2025
•[ ransomware, leak, malware ]
Suspected ransomware attack against Swedish IT supplier Miljdata disrupted critical services for ~200 municipalities starting August 23, 2025. Systems were encrypted, and attackers threatened to leak stolen personal and medical data unless paid 1.5 BTC.
Miljödata (IT supplier for municipalities)
August 23, 2025
•[ ransomware, data leak, personal data ]
Suspected ransomware attack against Swedish IT supplier Miljdata disrupted critical services for ~200 municipalities starting August 23, 2025. Systems were encrypted, and attackers threatened to leak stolen personal and medical data unless paid 1.5 BTC.
Anchorage Neighborhood Health Cente
August 22, 2025
•[ ransomware, data leak ]
Anchorage Neighborhood Health Center disclosed that an unauthorized third party gained access to certain systems and that sensitive personal information and protected health information may have been exposed, including identifiers (such as Social Security numbers and state ID numbers) and medical/insurance information. Reporting around the incident also described operational impacts at the clinic, including phone lines being down and appointment scheduling disruptions for more than a week in late August 2025. The organization filed a public notice and began sending notification letters to impacted individuals on November 19, 2025.
Welcome Financial Group
August 21, 2025
•[ ransomware, finance ]
ALPHV/BlackCat claimed responsibility for stealing 1.024 TB of files from Welcome Financial Group, alleging it contained customer data such as names, addresses, and account numbers. The firm countered that only internal documents like meeting records were taken, and that its savings bank unit and customer accounts were not compromised.
Pittsburgh Gastroenterology Associates
August 20, 2025
•[ ransomware, malware, healthcare ]
On August 20, 2025, the Sinobi ransomware group hacked Pittsburgh Gastroenterologys internal systems, exfiltrating sensitive medical and personal information. The practice is involved in notifications and legal investigations following the breach.
Pittsburgh Gastroenterology Associates
August 20, 2025
•[ ransomware, data leak ]
A ransomware group known as Sinobi claimed on August 20, 2025, to have obtained data belonging to Pittsburgh Gastroenterology Associates. Reports indicate approximately 198GB of patient data were exfiltrated following unauthorized access to internal systems. The organization reported no service disruption or encryption, confirming only exfiltration of stored patient files.
Motility Software Solutions
August 19, 2025
•[ ransomware, malware, technology ]
Motility Software Solutions detected suspicious activity on Aug 19 2025 and confirmed ransomware deployment and data theft impacting about 760,000 individuals. Stolen data included names, birthdates, drivers license numbers, and SSNs. No threat actor attribution was disclosed.
Middletown, Ohio Municipal Services
August 17, 2025
•[ ransomware, malware, government ]
Middletown, Ohio suffered a cyberattacklikely ransomwarethat began around Aug 17, 2025. Multiple city service systems remained offline for weeks; some employee information may have been affected (per preliminary findings), but no definitive evidence of data exfiltration. No actor has been identified.
Butler County
August 17, 2025
•[ ransomware, data leak ]
A cyberattack disrupted Middletown city services on or about Aug. 17, 2025. City staff reported email accounts were offline for weeks (some gradually restored), main phone lines remained down, and key functions such as generating new utility bills and accessing utility/tax account information were unavailable. Online public/police record requests and background checks were paused, and the city relied on backup processes while working with third-party specialists to investigate and restore systems. Preliminary findings indicated some city employee information may have been affected, but the investigation had not determined what personal information (if any) was impacted.
Nissan Creative Box Inc. (Design Studio)
August 16, 2025
•[ ransomware, malware, automotive ]
Nissan Creative Box, a Tokyo-based Nissan design subsidiary, confirmed unauthorized access on August 16, 2025. Qilin ransomware claimed exfiltration of about 4 TB of sensitive intellectual property and design files, releasing samples as proof and threatening full disclosure. No encryption of systems has been reported.
Data I/O Corporation (electronics manufacturing)
August 16, 2025
•[ ransomware, misconfiguration, manufacturing ]
Ransomware incident on August 16 due to third-party firewall vulnerability disrupted internal and operational systems. Contained and fully remediated by September 4 with no customer impact or data theft; remediation cost ~$180K against $300K in annual savings. Actor remains unknown.
Hitachi Energy
August 15, 2025
•[ ransomware, malware, manufacturing ]
Warlock ransomware group claimed responsibility for breaching Hitachi Energy in mid-August 2025, exfiltrating sensitive employee and corporate data and encrypting systems. Disruption lasted several days before partial recovery.
Marquis Software Solutions
August 14, 2025
•[ ransomware, data leak ]
Marquis Software Solutions detected suspicious activity on Aug. 14, 2025 and determined it was the victim of a ransomware attack. An unauthorized party accessed Marquis network via a SonicWall firewall and may have acquired files from Marquis systems. Marquis stated the incident was limited to its environment (customers internal banking systems were not impacted) and that it had no evidence of misuse at the time of the notice. The potentially affected personal information for Maine residents includes names, addresses, phone numbers, Social Security numbers/TINs, dates of birth, and financial account information without security/access codes.
Box Elder County Government (Utah)
August 13, 2025
•[ ransomware, malware, government ]
Box Elder County was hit by a ransomware attack by the gang Interlock around August 13, 2025. Authorities confirmed the domestic breach disrupted operations; attackers released over 2 million stolen government files including law enforcement records, homicide case details, jail videos, and digital credentials. The FBI, Utah State Bureau of Investigation, and State Cyber Crimes Task Force are investigating.
Colt Technology Services
August 12, 2025
•[ ransomware, leak, hack ]
On August 12, 2025, Colt Technology Services experienced a cyberattack on internal support systems. The Warlock ransomware group stole and leaked up to 1 million documents, including employee salary information, customer contracts, network designs, and internal emails. Colt reported that customer-facing portals such as Colt Online and Voice API were taken offline proactively as a containment measure, not because of attacker disruption or encryption.
