Bolttech
January 5, 2026
•[ ransomware, data leak, extortion ]
Cybernews reported that the Everest ransomware group claimed to have stolen about 186GB of data from Bolttech (a global insurance infrastructure platform) and demanded ransom. The group claimed the dataset includes employee/agent account details (emails, names, roles, identifiers), customer information and contact details, policy data, mortgage-related records, insured property addresses, and financial parameters/identifiers. The group posted samples and a countdown timer on its leak site, threatening to publish the data if Bolttech did not respond. The article notes the claim was based on the leak-site post and that confirmation from Bolttech was being sought.
Esquire Brands
January 2, 2026
•[ ransomware, data leak, extortion ]
Cybernews reported that Esquire Brands (a childrens footwear maker operating several brands/licenses) was posted on the Play ransomware leak site, with attackers threatening to publish stolen data shortly thereafter. According to the leak-site post summarized in the article, the attackers claimed they obtained client documents, payroll data, and finance information. The report frames the incident as data theft with extortion leverage (typical double-extortion posture).
Undisclosed Mexican Bank #1
January 1, 2026
•[ ransomware, LockBit, electronic transfer services ]
Banco de Mxico reported that an undisclosed bank suffered a January 2026 ransomware incident involving LockBit that affected electronic transfer services; no customer financial impact was reported and the institutions financial impact remained pending.
At least one unnamed victim organization
January 1, 2026
•[ social engineering, credential theft, MFA manipulation ]
MuddyWater, an Iran-linked APT associated with Iran's Ministry of Intelligence and Security (MOIS), used Microsoft Teams social engineering against an unnamed victim organization in early 2026. The attackers established remote access, stole credentials, manipulated MFA protections, deployed AnyDesk and DWAgent for persistence, moved laterally, harvested VPN configuration files and other sensitive data, and exfiltrated information. The attackers later sent extortion emails referencing Chaos ransomware and directed the victim to a Chaos leak site, but reporting said no file-encrypting ransomware was deployed, indicating the ransomware framing was likely a false flag for espionage activity.
Mt. Spokane Pediatrics
January 1, 2026
•[ ransomware, data leak, healthcare ]
Mt. Spokane Pediatrics experienced unauthorized access to certain systems in its network environment on or about January 1, 2026, and files containing patient information were removed. LockBit 5.0 claimed responsibility on January 3, 2026 and threatened to leak the stolen data. The clinic's forensic investigation determined on April 22, 2026 that exfiltrated files contained personal and protected health information for 32,021 individuals, including 29,410 Washington accounts.
Sedgwick Government Solutions
December 31, 2025
•[ ransomware, data leak, file transfer system ]
SecurityWeek reported that Sedgwick confirmed a security incident at its subsidiary Sedgwick Government Solutions after the TridentLocker ransomware group claimed to have hacked it. Sedgwick stated the incident affected only an isolated file transfer system and that the subsidiary is segmented from the rest of Sedgwick, with no evidence of access to claims management servers and no impact on service delivery. The article noted that on New Years Eve, TridentLocker claimed it stole roughly 3.4GB of data from Sedgwick Government Solutions and leaked it publicly, while Sedgwick did not comment on the specifics of the attackers claims.
ManageMyHealth
December 30, 2025
•[ ransomware, data leak, healthcare ]
A significant volume of patient medical records was accessed and partially encrypted in a cyber intrusion targeting document systems The threat actor issued a ransom demand and published some data samples online before legal action was taken The breach was discovered in late December and publicly confirmed shortly after
Sports Medicine and Orthopedics
December 30, 2025
•[ ransomware, data leak, healthcare ]
Sports Medicine & Orthopaedics, a now-closed practice in East Providence, Rhode Island, reported that it was impacted by a ransomware incident in October 2025. Reporting indicates the attack exposed personal and health-related information for roughly 4,000 patients, prompting the practice to issue breach notifications after it had already shut down operations. Public accounts describe a ransomware-driven compromise that resulted in unauthorized access to patient information (typical elements in these incidents include identifiers and clinical/billing-related data), with the key confirmed impact being exposure of patient data tied to the practice rather than a long-running operational outage (since the practice was shuttered).
Complexul Energetic Oltenia
December 26, 2025
•[ ransomware ]
A ransomware attack attributed to the Gentlemen group encrypted internal IT systems at Complexul Energetic Oltenia on December 26 2025 causing partial operational disruption The company isolated affected systems restored operations from backups and stated that national energy supply was not affected Data exfiltration has not been confirmed
Chrysler (Stellantis)
December 25, 2025
•[ ransomware, data leak ]
Everest ransomware group claimed it breached Chrysler systems and exfiltrated 1088 GB of data, including Salesforce-related CRM exports and recall/customer service records, and threatened to leak the full dataset.
Undisclosed Austrian pharmaceutical company
December 25, 2025
•[ ransomware, data leak, extortion ]
The article reports that a Vienna-based pharmaceutical company was affected by a ransomware attack in which threat actors compromised systems and leaked corporate data as part of an extortion campaign.
Leduc County
December 25, 2025
•[ ransomware, cybersecurity incident, IT systems outage ]
Leduc County in Alberta reported that it became aware on December 25, 2025 of a deliberate cybersecurity incident later identified as a ransomware attack. The county said the activity disabled some of its IT systems, and that other systems were proactively taken offline during an ongoing forensic investigation and recovery. Reporting noted that law enforcement and key stakeholders (including insurance and banking providers) were notified. Public reporting did not specify confirmed data theft, the number of affected endpoints, or a restoration date.
Romanian Waters (Administrația Națională Apele Române)
December 20, 2025
•[ ransomware ]
Romanias national water authority, Romanian Waters, suffered a ransomware incident that began on December 20, 2025 and disrupted IT services across the organization. Romanias National Cyber Security Directorate (DNSC) reported the event affected approximately 1,000 computer systems, including workstations, email services, and web servers, and spread from the main office to 10 of 11 regional river management branches. The disruption took down key digital tools such as domain services and GIS mapping, and the agencys public website remained offline while updates were shared through other channels. Authorities stated that operational technology supporting dams and flood defenses remained safe and that field staff continued critical functions manually.
Romanian Waters (Administrația Națională Apele Române)
December 20, 2025
•[ ransomware, IT disruption, critical infrastructure ]
Romanias national water authority, Romanian Waters, suffered a ransomware incident that began on December 20, 2025 and disrupted IT services across the organization. Romanias National Cyber Security Directorate (DNSC) reported the event affected approximately 1,000 computer systems, including workstations, email services, and web servers, and spread from the main office to 10 of 11 regional river management branches. The disruption took down key digital tools such as domain services and GIS mapping, and the agencys public website remained offline while updates were shared through other channels. Authorities stated that operational technology supporting dams and flood defenses remained safe and that field staff continued critical functions manually.
Club Atletico River Plate
December 19, 2025
•[ ransomware, data leak ]
On December 19, 2025, Argentine media reported that Club Atltico River Plate was listed on ransomware group Qilins dark web leak site, suggesting the group had gained unauthorized access to the clubs IT environment. The report described a significant compromise of sensitive information and access to the institutions digital infrastructure, with screenshots posted as evidence and indications the club used Microsoft 365 services. The attackers posted metrics referenced data for 4,042 users, one directly compromised employee, and 13 credentials belonging to employees of third parties
Undisclosed Ghana financial institution
December 19, 2025
•[ ransomware, data leak ]
A ransomware attack targeted a Ghanaian financial institution, encrypting large volumes of data and resulting in a financial loss of approximately USD 120,000, with authorities later assisting in partial data recovery.
Dainichiseika Color & Chemicals Mfg. (Vietnam subsidiary)
December 15, 2025
•[ ransomware, unauthorized access, data leak ]
Dainichiseika Color & Chemicals Manufacturing reported that its consolidated subsidiary in Vietnam (DAINICHI COLOR VIETNAM CO., LTD.) suffered unauthorized access that resulted in ransomware infection of internal servers and related systems. On December 15, 2025, the company confirmed that files on servers and PCs had been encrypted and rendered unreadable, consistent with a ransomware data attack. Affected devices were disconnected from internal networks and the internet to prevent spread, and IT specialists were dispatched to support recovery and forensic analysis. The company stated that key subsidiary operations such as manufacturing and shipping continued as usual and that the extent of information leakage, if any, was still being assessed.
Petroleos de Venezuela (PDVSA)
December 15, 2025
•[ ransomware, state-sponsored, service disruption ]
PDVSA confirmed a cyberattack impacted its administrative system and publicly blamed the United States, though outside experts had not substantiated that attribution. Reporting cited by the outlet said the incident was more damaging than PDVSA described, with the company website down and oil cargo deliveries suspended; company sources characterized it as a ransomware attack and described systems being down and deliveries halted for days.
Pell City School System
December 15, 2025
•[ ransomware, security incident, data leak ]
Pell City School System reported that some of its technology systems were affected by a security incident. The superintendent told families that the student information system was not affected, but that a third party copied some files. The district said it was working to resolve the incident and restore services and stated it would not pay. A separate report stated that the SafePay ransomware group claimed responsibility in December 2025, but the school district had not publicly verified the claim or provided details about exactly what data was taken or how systems were accessed at the time of reporting.
Danish Booksellers' Commission Foundation
December 15, 2025
•[ ransomware, data leak, IT disruption ]
A Danish business foundation that distributes books to many bookstores reported being hit by ransomware during the busy Christmas period. The incident disrupted IT operations and prompted an investigation. The organization warned that attackers may have accessed internal files, including employee salary information and other personal data related to staff and potentially customers and former employees. Details on the initial access vector, the ransomware strain, and the total number of impacted individuals were not publicly provided.
