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.
Grange Dental Care
February 19, 2026
•[ phishing, fraudulent invoices, system compromise ]
Threat actors compromised Grange Dental Cares system and sent fraudulent invoice emails from the practice before the incident was quickly contained.
Russian military drone operators
February 21, 2026
•[ data leak, monitoring systems, drone operators ]
Ukrainian hacktivists from the Fenix cyber analytics center, supported by volunteers of the InformNapalm international intelligence community, compromised accounts of Russian military personnel and gained access to monitoring systems used by attack drone operators.
Choice Hotels International
January 14, 2026
•[ social engineering, unauthorized access, PII leak ]
An unauthorized person used social engineering to gain access to a Choice Hotels application containing records on franchisees and franchise applicants, exposing names and Social Security numbers.
MediMap
February 22, 2026
•[ data integrity, unauthorized access, healthcare breach ]
MediMap was taken offline after an unauthorized user altered patient records, including names, ages, living status, and facility assignments, disrupting medication management across New Zealand providers. Some of the records were changed to designate the patient as dead or have them name changed to Charlie Kirk.
Undisclosed Middle East entity
February 24, 2026
•[ ransomware, cyberattack, data breach ]
Symantec and Carbon Black linked Lazarus to a Medusa ransomware attack against an undisclosed Middle East entity; the same reporting noted an unsuccessful attempt against a U.S. healthcare organization, which is not coded here as a successful event.
Greater Pittsburgh Orthopaedic Associates
August 10, 2025
•[ ransomware, data leak, exfiltration ]
Greater Pittsburgh Orthopaedic Associates identified anomalous network activity on August 10, 2025, and later disclosed that patient data was exposed; RansomHouse claimed it encrypted files and exfiltrated data from the network.
Clalit Health Services
February 25, 2026
•[ data leak, healthcare breach, cyber attack ]
Handala claimed it breached Clalit Health Services and published patient files and internal documents online; Clalit said it was investigating the incident and that systems were operating normally.
Dienst Justitiële Inrichtingen
February 27, 2026
•[ data leak, vulnerability exploit, internal network access ]
Hackers exploited an Ivanti Endpoint Manager Mobile flaw to access the internal network of the Dutch prisons agency and view staff contact details and security certificates; they also gained access to phones, tablets, and laptops.
LG Uplus
July 1, 2025
•[ unauthorized access, data leak, credential theft ]
LG Uplus reported illegal access to internal information after a breach affecting company servers. Investigators said exposed information included server lists, server account credentials, and employees names, and later found forensic reconstruction was hindered after key systems were reinstalled or discarded.
IRNA
February 28, 2026
•[ hacktivism, website defacement, political messaging ]
IRNA was hacked to display political messages during the same campaign that affected BadeSaba. Reporting says multiple Iranian news websites were compromised, and this row captures IRNA as one named victim.
BadeSaba
February 28, 2026
•[ hacking, hacktivism, propaganda ]
BadeSaba, a religious calendar app with more than 5 million downloads, was hacked to display anti-regime messages to users. The compromised app showed propaganda urging armed forces to surrender and join the people.
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.
Ngong Ping 360
February 26, 2026
•[ ransomware, data breach, internal network compromise ]
Ngong Ping 360 said an attacker stole personal data from its internal network and made a ransom demand. The company said the affected network was separate from cable car operations and electronic payment systems.
Wilhelmsen Ship Management (Norway) AS
February 27, 2026
•[ ransomware, data leak, operational disruption ]
A ransomware incident affected systems on a single Wilhelmsen-managed ship and disrupted that vessels operations. Later reporting said passport and next-of-kin information relating to personnel on that ship was also compromised.
Centre for Information Technologies of the State (CTIE)
February 26, 2026
•[ malware, data leak, government ]
CTIE detected malware on a system used to manage government mobile-device access and later said an external actor accessed device-holder information and device characteristics. The temporary loss of mobile access to internal state services resulted from CTIE isolating the affected system as a precaution.
Federal State Unitary Enterprise Main Radio Frequency Center
February 27, 2026
•[ DDoS attack, network infrastructure, cyber security ]
A multi-vector DDoS attack targeted infrastructure operated by the Main Radio Frequency Center. Traffic peaked at 33 Gbps and 36.9 million packets per second before malicious traffic was redirected to scrubbing servers and access was restored.
Ministry of Defence of the Russian Federation
February 27, 2026
•[ DDoS attack, multi-vector attack, cyber attack ]
A multi-vector DDoS attack targeted online resources associated with the Russian Ministry of Defense. Traffic peaked at 33 Gbps and 36.9 million packets per second before mitigation restored access.
Roskomnadzor
February 27, 2026
•[ DDoS attack, multi-vector attack, traffic scrubbing ]
A multi-vector DDoS attack targeted Roskomnadzor online resources. Traffic peaked at 33 Gbps and 36.9 million packets per second before malicious traffic was redirected to scrubbing servers and access was restored.
