Apex Spine and Neurosurgery
December 9, 2025
•[ unauthorized access, malware, ransomware ]
An unauthorized actor accessed part of Apex Spine and Neurosurgerys computer network, copied files, and deployed malware that locked files on computer systems. The practice said the incident affected 2,500 individuals.
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.
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.
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.
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.
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.
Undisclosed Canon U.S.A. subsidiary
November 25, 2025
•[ vulnerability exploit, data breach ]
A Canon U.S.A. subsidiary was compromised in the Oracle EBS hacking campaign, where attackers exploited an application server vulnerability. Canon reported that the incident was limited to a single web server and that no Canon data had been leaked as of the latest update.
Undisclosed Korean financial institutions
November 25, 2025
•[ ransomware, supply-chain attack, data leak ]
Bitdefender reported a targeted supply-chain attack in which the Qilin ransomware group compromised managed service providers to access numerous South Korean financial institutions. The attackers exfiltrated data and listed victims on their leak site, with at least 25 firms affected in a single month.
Mallorca Public Transport System
November 25, 2025
•[ ddos, hacktivism ]
Security reporting described a claimed DDoS attempt attributed to the pro-Russian hacktivist collective NoName057(16) targeting public-facing transport websites linked to Mallorcas TIB. Available reporting indicated analysts believed the group attempted to overload public web endpoints with DDoS traffic, but no verified outages or service interruptions were observed for TIB platforms, and there were no reported impacts on trains, buses, or metro operations.
Truenorth Corporation
November 25, 2025
•[ ransomware, third-party breach, government ]
Puerto Rico officials reported a Thanksgiving-week cyberattack targeting IT contractor Truenorth Corporation that briefly disrupted systems used by three major agencies: the Department of Education, the Puerto Rico Health Insurance Administration (ASES), and the State Insurance Fund Corporation (CFSE). Reporting cited an independent cybersecurity source describing the incident as ransomware detected on Nov. 25, 2025, with rapid ripple effects into those agencies systems. Officials stated citizen data was not compromised, and other agencies under Truenorth contracts (including the State Elections Commission) were reported as not affected. The events primary confirmed impact was short-term operational disruption across multiple government agencies tied to the vendors environment.
Dolar Financial Group
November 25, 2025
•[ ransomware, data leak, extortion ]
Money Mart (National Money Mart Company Database) was posted to the Everest ransomware groups leak site around Nov 25, 2025, with the attackers claiming they exfiltrated 80,000+ internal files and threatening to publish them by Nov 30. Reporting states Cybernews reviewed the leaked samples and observed multiple categories of data, including customer identification/contact details and identity documents, financial data (including partial credit card details and transaction-related records), and extensive employee information. The report describes the incident primarily as data theft/extortion, with no confirmed public statement from Money Mart included in the article and no operational outage details provided in the cited reporting.
Donbas Post
November 24, 2025
•[ hacktivism, wiper attack, data destruction ]
Ukrainian Cyber Alliance claimed responsibility for wiping Donbas Post's systems in Russian-occupied Ukraine, deleting data from over 1,000 workstations and dozens of servers, disrupting web, email, and corporate operations.
Royal Borough of Kensington and Chelsea
November 24, 2025
•[ data leak ]
RBKC confirmed that attackers accessed council systems and copied data during a cyber incident identified on November 24. The council reports that only historical data was affected, though exfiltrated information may enter the public domain. Emergency plans were activated and some online services and phone lines were disrupted.
