Cheyenne and Arapaho Tribes
December 8, 2025
•[ ransomware, network shutdown, operational disruption ]
A ransomware attack forced the Cheyenne and Arapaho Tribes to shut down tribal computer networks, disrupting email and phone service and suspending some operations while systems were restored in phases.
Eanes ISD
December 6, 2025
•[ ransomware, data leak, network outage ]
Eanes ISD experienced a weeklong Wi-Fi outage beginning December 6, 2025 that made tools including Skyward and Google Classroom unavailable and forced paper-based workarounds; later, Qilin claimed the district on a leak site, but no public theft details were confirmed.
Dragonica Lunaris
December 6, 2025
•[ data breach, gaming, email addresses ]
In December 2025, the European Dragonica private server Dragonica Lunaris suffered a data breach. The incident exposed 126k email addresses, usernames, dates of birth and bcrypt password hashes. The service operator confirmed the breach and advised it has since been fixed.
Greater St. Louis Oral & Maxillofacial Surgery PC
December 4, 2025
•[ phishing, data leak ]
Unauthorized access to a server-hosted employee email account resulted in exposure of patient personal and protected health information and use of the account to send phishing emails.
Goodwin University
December 4, 2025
•[ network disruption, unauthorized access, data breach ]
Goodwin University experienced a network disruption on December 4, 2025 and secured its network environment. Qilin claimed responsibility on December 28, 2025, and the investigation later determined that certain files may have been acquired without authorization. DataBreach indexed 209,218 rows tied to the breach, while outside reporting says Goodwin later confirmed 56,156 impacted individuals. Public sources did not confirm encryption or the precise disruption mechanism.
New York Life Insurance Company
December 2, 2025
•[ unauthorized access, email compromise, personally identifiable information ]
New York Life Insurance Company discovered unauthorized access to one of its agents' email accounts on December 2, 2025. After securing the account and completing its investigation, the company confirmed on April 8, 2026 that the compromised account contained some clients' personal information, including identifiers, financial information, medical information, and health insurance information. Public reporting did not identify a responsible actor, data volume, ransomware, or operational disruption.
Yokosuka Gakuin School Corporation
December 1, 2025
•[ ransomware, data leak ]
Yokosuka Gakuin School Corporation disclosed a ransomware-related cyberattack discovered in early December 2025 involving unauthorized access to a server and external leakage of photos and videos. The school disconnected systems as a precaution and stated that investigations were ongoing; no quantitative details about data volume or affected individuals were publicly released.
Undisclosed Apple-assembler in China
December 1, 2025
•[ data leak ]
Hackers breached an Apple assembler in China and accessed internal systems, with reporting indicating that production and manufacturing-related data was targeted during the intrusion.
Call-On-Doc, Inc., dba Call-On-Doc.com
December 1, 2025
•[ data leak, telehealth breach, patient record exfiltration ]
A threat actor posted a sales listing on a hacking forum claiming that telehealth provider Call-On-Doc was breached in early December 2025 and that 1,144,223 patient records were exfiltrated. The listing reportedly included patient identifiers and contact details, transaction metadata, medical category and condition fields, prescribed services, and payment amounts. The reporting outlet reviewed screenshots and a sample file and assessed the data appeared plausible, but Call-On-Doc had not publicly confirmed the incident at the time of reporting.
ATM in Tyler, TX
December 1, 2025
•[ malware, jackpotting, financial crime ]
Court documents alleged three Dallas men installed malware on a Tyler ATM as part of a financial jackpotting scheme.
Undisclosed organization
December 1, 2025
•[ email bombing, Microsoft Teams impersonation, Snow malware ]
UNC6692 used email bombing and Microsoft Teams helpdesk impersonation to deliver the Snow malware suite, moved laterally through the victim environment, reached domain controllers, extracted the Active Directory database and registry hives with FTK Imager, and exfiltrated the files using LimeWire.
MédecinDirect
November 28, 2025
•[ data leak ]
MdecinDirect, a French teleconsultation platform, reported a large-scale cyber incident in late November 2025. The provider stated it was the victim of an intrusion that was stopped upon detection on 11/28/2025. Approximately 285,000 patients were warned that their account information could have been compromised, and affected people were informed once the incident perimeter was clarified on 12/03/2025. MdecinDirect indicated that personal and health data potentially consulted included the reason for teleconsultation, information provided in pre-teleconsultation questionnaires, written exchanges between patients and physicians, and some Social Security numbers. The platform stated teleconsultation videos were not recorded and were therefore not impacted. It reported filing a complaint and notifying the CNIL (Frances data protection authority), and stated that services were functioning normally about ten days after the intrusion while additional technical investigation continued.
The Araneta Group of Companies
November 28, 2025
•[ data leak ]
The Araneta Group of Companies disclosed a cybersecurity breach affecting systems of multiple subsidiaries, including Araneta Center Inc., TicketNet Inc., and PPI Holdings Inc., and reported the incident to regulators while investigating the scope of impact.
An undisclosed company's cloud environment
November 28, 2025
•[ cloud security, credential exposure, misconfiguration ]
HackRead summarized Sysdig Threat Research Team observations of an attacker taking over an organizations AWS cloud environment on Nov. 28, 2025 in roughly eight minutes. The report described the compromise as being enabled by exposed AWS credentials stemming from a storage/configuration error, and stated the intruder rapidly escalated to full administrative control using automation and AI-assisted workflows.
Southern Illinois Dermatology
November 28, 2025
•[ unauthorized access, protected health information, PHI ]
Southern Illinois Dermatology discovered unauthorized access to its network on November 28, 2025, resulting in the exposure of personal and protected health information of approximately 160,312 individuals.
Florida Physician Specialists
November 27, 2025
•[ unauthorized access, data breach, personal information ]
Florida Physician Specialists said unauthorized access to its network occurred between approximately November 27 and November 29, 2025. A review completed on April 6, 2026 determined that personal, financial, medical, and health insurance information may have been removed from the network, affecting 276,498 individuals.
Visage Imaging
November 26, 2025
•[ data leak ]
Visage Imaging reported a security incident involving unauthorized access to certain personal information within its systems. The organization indicated that an unauthorized party accessed personal information classified as personally identifiable information (PII), and that impacted elements may include individuals names and Social Security numbers. Visage Imaging filed a public notice with the Massachusetts Attorney General and began sending notification letters to impacted individuals on November 26, 2025.
Advanced Family Surgery Center (AFSC)
November 26, 2025
•[ data leak, healthcare, protected health information ]
Threat actors identifying as Genesis claimed they compromised Advanced Family Surgery Center (AFSC) in Oak Ridge, Tennessee, and later added the organization to their leak site, asserting that about 100 GB of data had been exfiltrated from company file servers. The reported dataset included healthcare data, personal data, financial data, user folders, and operational files. The reporting outlet reviewed sample files and indicated they contained protected health information such as patient names, dates of birth, full Social Security numbers, dates of service, physician details, and insurance information. At the time of reporting, no official public notification by the provider had been located.
