Monroe University
December 9, 2024
•[ data breach, network access, personally identifiable information (PII) ]
BleepingComputer reported that Monroe University disclosed that threat actors accessed its network for roughly two weeks (December 9 to December 23, 2024) and stole documents later determined to contain personal, financial, and health information. The university stated it determined on September 30, 2025 that certain individuals data was contained in the stolen files, and filings indicated 320,973 individuals were affected. Exposed data elements were described as varying by person and potentially including name, date of birth, Social Security number, drivers license or passport numbers, government ID numbers, medical and health insurance information, email or electronic account usernames and passwords, financial account information, and student-related data. Notifications were mailed beginning January 2, 2026.
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.
Gulshan Management Services
September 25, 2025
•[ ransomware, phishing, data breach ]
SecurityWeek reported that Gulshan Management Services, associated with Gulshan Enterprises (operator of Handi Plus and Handi Stop locations in Texas), disclosed a ransomware-related data breach affecting more than 377,000 individuals via a filing with the Maine Attorney General. Gulshan detected unauthorized access in late September 2025 after an attacker gained entry through a successful phishing attack and maintained access for about 10 days. During that period, the threat actor stole personal data and then deployed ransomware that encrypted files on Gulshan systems. The compromised personal information was described as including names, contact details, Social Security numbers, and drivers license numbers.
Endesa
January 13, 2026
•[ data breach, unauthorized access, data exfiltration ]
SecurityWeek reported that Spanish energy company Endesa notified customers about a data breach involving unauthorized access to its commercial platform, also impacting customers of its gas distributor Energia XXI. Endesa stated that attackers accessed and likely exfiltrated basic customer identification information, contact details, national identification numbers (DNI), contract information, and payment details including IBANs. The company said passwords were not compromised and that the incident was contained quickly, with additional safeguards implemented and notifications sent to affected customers.
Tokyo FM Broadcasting Co., LTD
January 1, 2026
•[ data leak, personal information, telemetry ]
HackRead reported that on January 1, 2026 an actor using the alias victim claimed to have breached Tokyo FMs private computer systems and stolen data exceeding three million records. The stolen dataset was described as containing personal details (full names, birthdays, email addresses) plus technical telemetry (IP addresses and user-agent strings). The actor also claimed to have obtained internal system login IDs and information related to individuals jobs. The report emphasized that the claim was listed as pending verification at the time of publication, but Tokyo FM was described as investigating the allegation.
UrbanX.io
January 6, 2026
•[ data leak, initial access broker, information-stealer malware ]
SecurityWeek reported that Hudson Rock linked dozens of major breaches to a single initial access broker operating under the aliases Zestix and Sentap. The actor is described as using credentials harvested via information-stealer malware (including RedLine, Lumma, and Vidar) from infected employee devices to log into enterprise file-transfer/file-sharing environments such as ShareFile, OwnCloud, and Nextcloud when MFA was missing. After gaining access, the actor allegedly exfiltrated sensitive corporate data and monetized it by selling datasets or access on closed Russian-language forums, with victim organizations spanning sectors such as aerospace, government infrastructure, legal services, and robotics.
Australian NBN
January 6, 2026
•[ Initial Access Broker, Information-stealer malware, RedLine ]
SecurityWeek summarized Hudson Rock findings that dozens of major breaches were tied to a single initial access broker using credentials harvested by information-stealer malware (RedLine, Lumma, Vidar). The actor (Zestix/Sentap) was described as using stolen employee credentials to access enterprise file-transfer or file-sharing instances (ShareFile, OwnCloud, Nextcloud), with the lack of MFA being the key enabling control failure. The reporting characterized the actor as both stealing data and monetizing it by selling datasets and/or selling access on closed Russian-language forums, with victim organizations spanning aerospace, government infrastructure, legal, robotics, healthcare and other sectors. Because the report is multi-victim and campaign-focused rather than a single victims disclosure, this record is captured as a single-actor campaign entry.
NMCV Business LLC
January 6, 2026
•[ information-stealer malware, initial access broker, credential harvesting ]
SecurityWeek summarized Hudson Rock findings that dozens of major breaches were tied to a single initial access broker using credentials harvested by information-stealer malware (RedLine, Lumma, Vidar). The actor (Zestix/Sentap) was described as using stolen employee credentials to access enterprise file-transfer or file-sharing instances (ShareFile, OwnCloud, Nextcloud), with the lack of MFA being the key enabling control failure. The reporting characterized the actor as both stealing data and monetizing it by selling datasets and/or selling access on closed Russian-language forums, with victim organizations spanning aerospace, government infrastructure, legal, robotics, healthcare and other sectors.
CRRC MA
January 7, 2026
•[ credential theft, information-stealer malware, initial access broker ]
Reporting summarizing Hudson Rock research described an initial access broker believed to be an Iranian national operating under the aliases Zestix and Sentap who repeatedly accessed enterprise file repositories using credentials harvested by information-stealer malware (including RedLine, Lumma, and Vidar). Instead of exploiting a single company-specific vulnerability, the actor leveraged stolen usernames/passwords (some sitting in logs for years) to log into cloud/file-transfer environments lacking multi-factor authentication. The actor was described as exfiltrating large volumes of sensitive corporate data (examples referenced include aviation safety manuals, energy/utility mapping and infrastructure files, and medical/police-related records), then auctioning datasets or selling access on closed forums. Because the article describes a cross-victim pattern/campaign rather than one named-victim incident, this record is coded at the campaign level for a single-actor series of breaches.
Iberia Airlines
January 7, 2026
•[ infostealer, malware, credential theft ]
TechRadar and HackRead summarized Hudson Rock research describing a campaign in which an actor using the alias Zestix (aka Sentap) leveraged credentials harvested by infostealer malware (e.g., RedLine, Lumma, Vidar) to access corporate cloud instances where multi-factor authentication was not enforced. Reporting stated the attacker obtained and attempted to auction or sell large volumes of sensitive corporate files from roughly 50 enterprises worldwide, with at least one victim reportedly losing on the order of 139GB of data. Specific victim impacts vary by organization, and the timing of initial credential theft was not fully specified.
Nissan Motor Corporation (Nissan Motor Co., Ltd.)
January 10, 2026
•[ ransomware, data leak, extortion ]
HackRead reported that the Everest ransomware group claimed it breached Nissan Motor Corporation and stole about 900GB of internal data. The article said the group posted the allegation on its leak site on January 10, 2026 and shared screenshots and directory listings suggesting access to internal operational documents, data extracts, and dealership-related records. Everest reportedly threatened to publish the data if Nissan did not respond within a set timeframe. Nissan had not publicly confirmed the claim at the time of reporting.
At least one US government official
January 19, 2026
•[ spearphishing, espionage, DLL sideloading ]
HackRead summarized Acronis research describing an espionage-oriented spearphishing campaign targeting U.S. government entities using Venezuela-related news as bait. The described chain used a lure archive and DLL sideloading to load a backdoor dubbed LOTUSLITE, enabling remote access actions such as file collection and command execution on compromised systems. The article stated the researchers attributed the activity with moderate confidence to the China-backed group Mustang Panda (aka HoneyMyte).
McDonald's India
January 20, 2026
•[ ransomware, data leak, data exfiltration ]
HackRead reported that on January 20, 2026 the Everest ransomware group claimed it breached McDonalds India and exfiltrated 861 GB of customer data and internal documents. The report described screenshots purportedly showing internal financial reports (20232026), audit trails, cost tracking, ERP migration files, pricing data, and other internal communications, as well as a Contact Database spreadsheet with investor/business-partner contact details and store-level manager contact information. Everest reportedly issued a short deadline and threatened to leak data; the article noted the claim was unverified at the time.
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.
WhiteDate
January 2, 2026
•[ hacktivism, data leak, data destruction ]
Reporting describes a hacktivist using the pseudonym Martha Root who infiltrated an extremist dating website and related sites and later demonstrated deleting them live on stage during the Chaos Communication Congress. The coverage indicates the actor used automated tools/AI chatbots to extract and download user profile information and then published the acquired dataset. As described, the incident combined disruptive impact (site/service deletion) with unauthorized access and data acquisition affecting site users.
Global-e
January 7, 2026
•[ data exposure, third-party compromise, unauthorized access ]
Reporting aggregated by DataBreaches.Net indicates Ledger was impacted by a data exposure incident involving its third-party payment processor, Global-e. The report describes an email notification stating that an unauthorized party accessed Global-es cloud system and obtained Ledger customers personal details, including names and contact information associated with orders. The notification did not specify when the access occurred, how many Ledger customers were affected, or whether additional data types (e.g., payment details) were involved. The incident is treated as a third-party compromise affecting Ledger customer data.
Methodist Homes of Alabama and Northwest Florida
October 2, 2024
•[ unauthorized access, healthcare data breach, network incident ]
Methodist Homes of Alabama and Northwest Florida reported an incident involving unauthorized access to its network between October 2 and October 14, 2024. The organization notified HHS on January 30, 2025 that 908 patients were affected, and later notified the Maine Attorney Generals Office in October 2025 that the incident affected 25,579 individuals in total.
Undisclosed Taiwanese healthcare organization #5
January 12, 2026
•[ ransomware, cyber intrusion, data exfiltration ]
The CrazyHunter ransomware group conducted a cyber intrusion against a healthcare organization in Taiwan by exploiting application-layer access, resulting in unauthorized access and data exfiltration. Security reporting confirms the victim as one of multiple Taiwanese healthcare entities affected, though specific organizational details were not publicly disclosed.
Armenian Government
January 13, 2026
•[ Data Leak, Cybercrime, Alleged Breach ]
Reporting stated that a forum user using the alias dk0m offered for sale what was described as a large dataset of Armenian government-related data, allegedly obtained by accessing a government notification system used to distribute official communications (legal and administrative notices). The seller advertised the dataset for $2,500 and claimed it contained about 8 million records related to official notifications, including communications involving police and judicial bodies. Armenian officials opened an investigation, while a government-linked communications body publicly denied that government email infrastructure was breached and suggested any access may have involved another state platform. Because the incident is described as an allegation under investigation without independent confirmation of access or data theft, it is recorded as an alleged event rather than a confirmed cyberattack.
Southold
November 24, 2025
•[ cyberattack, service disruption, government ]
Southold, New York suspended public access to its Laserfiche online record-keeping system for more than six weeks following a cyberattack reported to have breached town servers on November 24, 2025. According to reporting cited in the post, the town planned approximately $500,000 in security upgrades funded via a bond before restoring public access to Laserfiche, and officials stated they could not provide a timeline for restoration as of January 12, 2026. The confirmed impact described is prolonged loss of public access to the online records system while remediation and security hardening continued; public reporting in the cited excerpt did not confirm data theft or enumerate affected records.
