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.
At least one Chrome user
April 14, 2026
•[ malicious extensions, credential theft, session hijacking ]
A coordinated campaign used 108 malicious Chrome extensions published under five developer identities to route stolen credentials, user identities, browsing data, Google account information, and Telegram Web session data to shared command-and-control infrastructure. The extensions collectively had about 20,000 Chrome Web Store installs and could inject ads or arbitrary JavaScript into visited pages and open arbitrary URLs through browser-level abuse.
Undisclosed United States organization
April 7, 2026
•[ ransomware, cybercrime, data exfiltration ]
Microsoft reported that Storm-1175, a financially motivated cybercrime actor linked to Medusa ransomware, heavily impacted organizations in Australia, the United Kingdom, and the United States by exploiting vulnerable web-facing systems, exfiltrating data, and deploying ransomware. This row represents the undisclosed United States victim component of the country-level coding approach.
Undisclosed United Kingdom organization
April 7, 2026
•[ ransomware, data exfiltration, cybercrime ]
Microsoft reported that Storm-1175, a financially motivated cybercrime actor linked to Medusa ransomware, heavily impacted organizations in Australia, the United Kingdom, and the United States by exploiting vulnerable web-facing systems, exfiltrating data, and deploying ransomware. This row represents the undisclosed United Kingdom victim component of the country-level coding approach.
Undisclosed Australian organization
April 7, 2026
•[ ransomware, Medusa ransomware, data exfiltration ]
Microsoft reported that Storm-1175, a financially motivated cybercrime actor linked to Medusa ransomware, heavily impacted organizations in Australia, the United Kingdom, and the United States by exploiting vulnerable web-facing systems, exfiltrating data, and deploying ransomware. This row represents the undisclosed Australian victim component of the country-level coding approach.
Nigeria's Corporate Affairs Commission (CAC)
April 15, 2026
•[ unauthorized access, data exfiltration, data breach ]
Nigerias Corporate Affairs Commission confirmed unauthorized access to limited aspects of its information systems; ByteToBreach claimed it exfiltrated about 25 million documents, roughly 750 GB, from CAC infrastructure, but CAC did not confirm the volume or identify the perpetrator.
Jordan Civil Aviation Commission
September 1, 2025
•[ APT35, Charming Kitten, data exfiltration ]
KittenBusters/CloudSEK reporting described APT35 activity in which files from Jordans Civil Aviation Commission were silently exfiltrated before Irans February 2026 regional missile and drone campaign; the reporting linked APT35/Charming Kitten to Irans IRGC Intelligence Organization.
Cuban Embassy in Washington D.C.
January 1, 2026
•[ cyberespionage, data exfiltration, email breach ]
China-linked hackers exploited long-unpatched Microsoft Exchange vulnerabilities on the Cuban Embassy in Washington D.C.s email servers beginning in January 2026, accessing and exfiltrating the full inboxes of 68 diplomatic officials, including the ambassador and deputy chief of mission.
Remita Payment Services Ltd
March 31, 2026
•[ data exfiltration, KYC documents, database leak ]
Remita Payment Services Ltd was named in Nigerian data-protection investigations after ByteToBreach claimed to have exfiltrated approximately 3 TB of data from Remita-linked systems, including KYC documents, databases, logs, backups, source code, password hashes, and customer and employee records. The Nigeria Data Protection Commission served notices of investigation on April 1, 2026, and the claimed data theft remains under investigation.
ZenBusiness
March 27, 2026
•[ data breach, extortion, ransomware ]
In March 2026, the hacker and extortion group "ShinyHunters" claimed to have obtained a substantial corpus of data from ZenBusiness, a business formation and compliance platform. The group claimed the data had been exfiltrated from platforms including Snowflake, Mixpanel and Salesforce, and threatened to publish it if a ransom was not paid. The following month, after claiming payment had not been made, ShinyHunters publicly released the data. The collection amounted to many terabytes across thousands of files that appeared to originate from multiple systems and business functions, including leads, support records and other CRM-related data. The data contained approximately 5M unique email addresses, often accompanied by name and phone number depending on the source file.
Le Centre national des œuvres universitaires et scolaires
March 23, 2026
•[ data leak, data exfiltration, personal information ]
The Cnous said data was exfiltrated from its mesrdv.etudiant.gouv.fr appointment platform, exposing personal information from student social-services and housing appointments taken over the past ten years.
Fairfield City Council
October 16, 2025
•[ unauthorized access, data exfiltration, system disruption ]
Fairfield City Council said threat actors illegally accessed a portion of its IT environment in October 2025, disrupted systems, and exfiltrated sensitive staff and resident information while most council services continued operating with temporary workarounds.
LiteLLM
March 24, 2026
•[ supply chain attack, malware, credential theft ]
TeamPCP used compromised release access to publish malicious LiteLLM versions to PyPI, embedding code that exfiltrated secrets and established persistence on systems that installed the poisoned packages.
The Gauteng Provincial Governmen
March 17, 2026
•[ ransomware, data leak, data exfiltration ]
Daily Maverick reported a ransomware-as-a-service syndicate calling itself XP95 claimed it stole 3.8TB of data from the Gauteng Provincial Government. The article describes the breach as a major failure of basic cybersecurity infrastructure and governance, with a massive dataset reportedly lifted/exfiltrated and allegedly offered for sale. The report did not provide a definitive public inventory of affected systems or all data elements, but characterized the exposure as potentially spanning personnel, procurement, and other government records at very large scale.
QualDerm
December 23, 2025
•[ data breach, data leak, unauthorized access ]
SecurityWeek reported that QualDerm Partners is notifying more than 3.1 million people of a December 2025 breach discovered on Dec. 24, 2025. QualDerm said attackers had unauthorized access to its network for two days and exfiltrated data from a limited number of compromised systems. Stolen data included personal identifiers and health/insurance information such as names, addresses, dates of birth, email addresses, medical record numbers, doctor names, treatment/diagnosis information, health insurance information, dates of death, and in some cases government-issued ID information. QualDerm said its investigation is ongoing and it notified law enforcement and regulators.
The Ukrainian State Hydrology Agency
March 19, 2026
•[ phishing, vulnerability exploitation, XSS ]
BleepingComputer reported that Russia-linked APT28 (GRU) exploited a Zimbra Collaboration Suite vulnerability (CVE-2025-66376) in attacks targeting Ukrainian government entities. Researchers described a phishing operation (Operation GhostMail) where a single HTML email body triggered obfuscated JavaScript exploiting the Zimbra XSS flaw when opened in a vulnerable webmail session. The payload was described as harvesting credentials, session tokens, backup 2FA codes, browser-saved passwords, and mailbox contents going back 90 days, with exfiltration over DNS and HTTPS. One referenced target was the Ukrainian State Hydrology Agency.
Ontario Health atHome
April 13, 2025
•[ ransomware, data exfiltration, healthcare ]
Ontario Medical Supply (OMS), a vendor supporting Ontario Health atHomes home care supply operations, experienced a ransomware incident in 2025. Reporting described earliest observed access on March 17, 2025, followed by ransomware payload execution on April 13, 2025, after which OMS systems failed and the organization was locked out of a significant portion of servers. Internal reporting referenced impacts to roughly 200,000 patients and indicated breached data included names, contact information, and medical supplies/equipment ordered. OMS later stated only a limited amount of incomplete data was exfiltrated and said it found no evidence of misuse at the time of its statement.
Fundação Getúlio Vargas
February 19, 2026
•[ ransomware, data-extortion, data leak ]
TecMundo reported that ransomware/data-extortion group Dragonforce listed Fundao Getulio Vargas (FGV) as a purported victim and claimed a compromise of 1.52 TB of data, posting images of documents as proof and setting a countdown (typical extortion deadline) for publication if ransom is not paid. TecMundo said it reviewed sample documents that appeared to include internship registration forms, personnel/event records, and project proposals. FGV responded that it had experienced service/provider instability that was resolved and that it had no confirmation of system intrusion or data exfiltration, stating that anonymous dark web postings were not proof.
Undisclosed U.S. aerospace and defense firm
March 6, 2026
•[ backdoor, data exfiltration, nation-state actor ]
SecurityWeek summarized Broadcom Symantec/Carbon Black reporting that Iran-linked MuddyWater (also known as Seedworm/Mango Sandstorm and linked to Irans MOIS) had established presence in multiple organizations networks, including a US airport, a US bank, an NGO operating in the US and Canada, an aerospace and defense contractor, and a software company with a presence in Israel. The report said MuddyWater deployed a new backdoor called Dindoor in several environments and a Python backdoor called Fakeset in others, and attempted to exfiltrate data from the software companys Israeli branch.
Langley Twigg Law
January 11, 2026
•[ cyberattack, data breach, malware ]
Langley Twigg Law (Napier, New Zealand) stated it was hit by a cyberattack on January 11, 2026. The firm said digital forensics and cyber specialists confirmed a malicious third-party launched a virus on its IT network, which was not protected by its cybersecurity software at the time. The firm reported the attacker extracted a portion of data from its file server containing internal operational information and some client documents. Langley Twigg said it disconnected its network from the internet, notified the Privacy Commissioner and police, and was working to determine exactly what information was affected before contacting impacted clients.
