Tulsa International Airport
January 31, 2026
•[ ransomware, data leak, internal documents ]
Qilin ransomware gang claimed responsibility for a ransomware attack on Tulsa International Airport and posted leaked internal documents; airport confirmed incident but not the attribution.
Ttareungyi (Seoul public bike-sharing service)
January 30, 2026
•[ data breach, PII exposure, data leak ]
Approximately 4500000 user records including user IDs and mobile phone numbers were exposed in a data breach affecting Seouls public bike-sharing service Ttareungyi; authorities stated the timing of the exposure was under investigation, and no attacker attribution had been confirmed at the time of reporting.
Provecho
January 30, 2026
•[ data leak, email addresses, usernames ]
In early 2026, data purportedly sourced from the recipe and meal planning service Provecho was alleged to have been obtained in a breach. The exposed data included 713k unique email address along with username and the creator account holders followed. Provecho has been notified and is aware of the claims surrounding the incident.
European Commission
January 30, 2026
•[ cyberattack, data leak, vulnerability exploitation ]
The European Commission disclosed it detected traces of a cyberattack on January 30, 2026 targeting its central infrastructure used to manage staff mobile devices. The Commission said the incident may have resulted in access to staff names and mobile phone numbers for some employees, but it had not found evidence that managed mobile devices themselves were compromised. The Commission stated its response contained and cleaned the system within nine hours. The article notes the Commission did not disclose the initial access method, but the incident appeared linked to attacks exploiting vulnerabilities in Ivanti Endpoint Manager Mobile (EPMM).
Match Group Inc. (Tinder, Hinge, OkCupid)
January 29, 2026
•[ data leak, cybercrime, ShinyHunters ]
A cybercrime group calling itself ShinyHunters claimed responsibility for accessing and leaking limited user and internal data from Match Group platforms. Match Group confirmed a security incident but stated that passwords, financial information, and private messages were not compromised.
Figure
January 28, 2026
•[ social engineering, fintech, data leak ]
In February 2026, data obtained from the fintech lending platform Figure was publicly posted online. The exposed data, dating back to January 2026, contained over 900k unique email addresses along with names, phone numbers, physical addresses and dates of birth. Figure confirmed the incident and attributed it to a social engineering attack in which an employee was tricked into providing access.
Atlas Air
January 27, 2026
•[ ransomware, data leak, aircraft maintenance ]
Cybernews reported that the Everest ransomware group claimed it siphoned 1.2TB of data from cargo airline Atlas Air, including aircraft maintenance documents and repair reports and information related to Boeing aircraft. Cybernews said the attackers did not attach direct data samples, only screenshots, and noted that Atlas Air explicitly denied its systems were breached.
Waltio
January 24, 2026
•[ data leak, extortion, cryptocurrency ]
French crypto tax platform Waltio reported being targeted by the ShinyHunters group, which claimed to possess personal data for nearly 50,000 users and threatened to leak users 2024 tax reports unless a ransom was paid. Waltio stated that its services and production systems remained secure and that no sensitive banking credentials or crypto access data was compromised. The incident primarily involves alleged data theft and extortion threats rather than service disruption, with the full scope of stolen fields not detailed in the summary.
CarMax
January 24, 2026
•[ data breach, extortion, data leak ]
In January 2026, data allegedly sourced from US automotive retailer CarMax was published online following a failed extortion attempt. The data included 431k unique email addresses along with names, phone numbers and physical addresses.
HanseMerkur
January 24, 2026
•[ data leak, ransomware, financial documents ]
DragonForce claimed it stole 97 GB of internal data from German insurer HanseMerkur and released sample financial documents; the company had not confirmed the breach at the time of reporting.
Crunchbase
January 23, 2026
•[ vishing, social engineering, credential theft ]
Reporting on an Okta SSO vishing (voice-phishing) campaign, ShinyHunters reportedly confirmed to a researcher that it conducted the campaign and launched a new dark web leak site. According to the report, ShinyHunters claimed that multiple victims had their data posted after refusing extortion demands, naming Crunchbase, SoundCloud, and Betterment as initial examples. The incident reflects social-engineering-driven credential theft leading to unauthorized access and data theft, followed by extortion and publication of alleged victim data.
Viafier
January 22, 2026
•[ malware, data leak, unauthorized access ]
The Swiss rail operator Viafier Retica shut down its Vereina car-shuttle online ticket shop after discovering malware on the system. The organization stated that attackers likely accessed the web shop database, which may contain customer and employee contact details and hashed passwords. Users were advised to change passwords used on other services. The incident caused service disruption to online ticket sales while containment and investigation actions were undertaken.
Nike
January 22, 2026
•[ ransomware, data leak, exfiltration ]
A ransomware group calling itself WorldLeaks (reported as a rebrand of Hunters International) claimed it breached Nike and began leaking data online. The groups leak-site posting dated January 22, 2026 alleged exfiltration of more than 1.4TB of files. A review of the leaked directory names suggested the exposed material primarily relates to product development and manufacturing operations, including design specifications and supplier-related operational documents, along with internal presentations and collaboration materials. Nike stated it was investigating the claims.
Sociedad Hipotecaria Federal
January 21, 2026
•[ ransomware, data leak, encryption ]
Sociedad Hipotecaria Federal was listed by LockBit, which claimed to have stolen 277 GB of data and published it after a ransom deadline expired; reporting also cited encryption of critical systems and operational disruption.
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.
Hyatt
January 19, 2026
•[ ransomware, data leak, double-extortion ]
A ransomware group calling itself NightSpire publicly claimed on January 19, 2026 that it attacked Hyatt and exfiltrated 48.5GB of data originating from the Hyatt Place Chelsea New York hotel. The actors published samples that appeared to include internal company documents such as invoices, expense reports containing employee names, contact information, signatures, and partner company data, and researchers noted the sample list suggested possible exposure of employee credentials for internal tools (raising risk of further compromise). The posting indicated a free download link, consistent with double-extortion tactics where stolen data is leaked if negotiations fail. At the time of reporting, Hyatt had not publicly confirmed the breach and the claims remained unverified by the company.
French national bank accounts database (FICOBA) / Ministry of Economy and Finance
January 18, 2026
•[ data leak, stolen credentials, unauthorized access ]
Frances Ministry of Economy and Finance stated that part of the national database listing bank accounts in France was illegally accessed, exposing information linked to about 1.2 million accounts. The ministry said that starting in late January 2026, a malicious actor used stolen credentials belonging to an official to access part of the database. The exposed data includes bank details (RIB/IBAN), identity and address of the account holder, and in some cases a tax identification number. Authorities said they restricted access, stopped the intrusion, and notified banks to warn customers to be vigilant.
Daniel L Kaler DDS PC
January 15, 2026
•[ data leak, unauthorized access, medical information ]
Attackers gained unauthorized access to systems at a Dakota Dunes dental practice and exfiltrated patient records from its databases. The breach exposed personal, medical, and financial information belonging to approximately 27000 individuals.
ICE List site
January 13, 2026
•[ denial-of-service attack, data leak, personal information ]
A website known as ICE List, operated by Netherlands-based immigration activist Dominick Skinner and described as dedicated to leaking personal information about U.S. immigration and border personnel, went offline following a denial-of-service attack on the evening of January 13, 2026. Reporting said the outage occurred shortly after media coverage that Skinner planned to publish additional personal data allegedly obtained from a whistleblower. Skinner stated it was only possible to speculate on who directed the attack but claimed a large amount of traffic appeared to come from Russia, consistent with bot traffic intended to overwhelm the site and disrupt access.
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.
