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.
Zealthy
January 16, 2026
•[ data leak, health information, personal information ]
Records advertised as Zealthy data were offered for sale online in January 2026, with sample files showing patient personal and health information; Zealthy had not publicly confirmed the incident in the reporting reviewed.
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.
Medical Practice of Dr. Richard Swift
January 12, 2026
•[ malware, cyberattack, data leak ]
DataBreaches reported on a class action lawsuit alleging that a Manhattan plastic surgery practice run by Dr. Richard Swift was compromised by a malware-related cyberattack in 2025 and that sensitive patient information was posted online. The suit alleged that a site hosted outside the U.S. displayed personal identifiers and medical record details for at least 22 patients, and that affected patients only learned about the breach after attackers contacted them directly. DataBreaches noted the same threat actors were linked to attacks on other plastic surgery practices and described a recurring pattern where attackers approached patients with demands in exchange for removing posted information. Public reporting did not confirm whether the practice paid, and the article noted the leak site later appeared offline.
At least one organization in Mexico
January 12, 2026
•[ data leak, leak portals, cybercrime ]
During 2025, the data of 74 Mexican organizations was exposed on leak portals used by criminal groups, a figure that doubles the 37 cases registered in 2024
Target
January 12, 2026
•[ data leak, source code theft, internal documentation ]
BleepingComputer reported that multiple current and former Target employees confirmed that source code and documentation posted online by a threat actor match real internal systems. Employees cited internal system names, platform references, and CI/CD tooling elements in the leaked sample that aligned with Targets development environment, and an internal communication referenced an accelerated security change restricting access to Targets Enterprise Git server shortly after the outlet contacted the company. The incident as described involves alleged theft and publication of internal repositories and development documentation rather than an outage or consumer-facing service disruption.
Congressional Staff email platform
January 11, 2026
•[ cyber intrusion, state-backed hacking, email compromise ]
TechStory reported that a cyber intrusion linked to the China-associated group known as Salt Typhoon compromised email systems used by staff supporting multiple powerful U.S. House committees (including foreign affairs, intelligence, and defense-related panels). The report said the intrusions were detected in December 2025, but investigators were still determining how long access persisted, what data was viewed or extracted, and whether any lawmakers personal accounts were affected. U.S. agencies and House offices were described as offering limited public comment while investigations continued, and China was reported as denying allegations of state-backed hacking.
American Vanguard
January 10, 2026
•[ data leak, data exfiltration, unauthorized access ]
The Osiris threat group gained unauthorized access to American Vanguard systems in early January 2026 and exfiltrated corporate and financial data. Security reporting and attacker leak listings indicate data theft, though no explicit confirmation of file encryption was reported. Operational impacts appear linked to incident response and remediation activities.
Eurail
January 10, 2026
•[ security breach, data leak, unauthorized access ]
Eurail B.V. (also operating as Interrail) confirmed a security breach that resulted in unauthorized access to customer data. Eurail/Interrail publicly posted notice on January 10, 2026 and began emailing affected customers on January 13, 2026, with the investigation described as ongoing. The companys early review stated that impacted data may include customer order and reservation information along with basic identity and contact details. Where provided, it may also include passport information such as passport number, country of issuance, and expiry date, particularly for customers who received passes through the DiscoverEU program. The report also referenced exposure of bank details and advised customers to remain vigilant for fraud attempts while Eurail monitored for misuse and notified data protection authorities.
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.
Betterment
January 9, 2026
•[ social engineering, phishing, data leak ]
In January 2026, the automated investment platform Betterment confirmed it had suffered a data breach attributed to a social engineering attack. As part of the incident, Betterment customers received fraudulent crypto-related messages promising high returns if funds were sent to an attacker-controlled cryptocurrency wallet. The breach exposed 1.4M unique email addresses, along with names and geographic location data. A subset of records also included dates of birth, phone numbers, and physical addresses. In its disclosure notice, Betterment stated that the incident did not provide attackers with access to customer accounts and did not expose passwords or other login credentials.
Betterment
January 9, 2026
•[ social engineering, data leak, phishing ]
TechCrunch reported that Betterment confirmed hackers accessed some of its systems on January 9, 2026 through a social engineering attack involving third-party platforms used for marketing and operations. Betterment said the attackers accessed customer personal information including names, email and postal addresses, phone numbers, and dates of birth, and used that access to send fraudulent scam notifications to users. The company said it detected and revoked unauthorized access the same day, launched an investigation with external help, and stated its ongoing investigation indicated no customer accounts were accessed and no passwords or login credentials were compromised. Betterment did not disclose how many customers were affected.
Free Speech Union (FSU)
January 9, 2026
•[ data leak, hacktivism, donor exposure ]
Cybernews reported that the UK-based Free Speech Union (FSU) was hacked by trans activists and that the names of people who donated 50 or more were publicly listed online. The dataset was made available via Distributed Denial of Secrets (DDoSecrets). The article frames the attack as politically motivated (protest/ideological retaliation) and describes the outcome as exposure of supporter identities; it does not confirm the full set of leaked fields beyond donor names and the donation-threshold context, nor does it describe service disruption at the organization.
Cressi
January 8, 2026
•[ ransomware, data leak, leak site ]
Cybernews reported that the ransomware group Qilin claimed responsibility for an attack on Cressi, an Italian diving equipment manufacturer, by posting a ransom entry on its leak site on January 8, 2026. The report notes that at that stage it was unclear what data (if any) had been accessed or exfiltrated and that the group had not published data samples or set a countdown timer. As reported, the main confirmed indicator is the groups claim and listing on the leak site; independent confirmation of encryption, downtime, or data theft was not provided in the article.
Instagram
January 7, 2026
•[ data leak, scraping ]
In January 2026, data allegedly scraped via an Instagram API was posted to a popular hacking forum. The dataset contained 17M rows of public Instagram information, including usernames, display names, account IDs, and in some cases, geolocation data. Of these records, 6.2M included an associated email address, and some also contained a phone number. The scraped data appears to be unrelated to password reset requests initiated on the platform, despite coinciding in timeframe. There is no evidence that passwords or other sensitive data were compromised.
Panera Bread
January 7, 2026
•[ ransomware, data leak ]
In January 2026, Panera Bread suffered a data breach that exposed 14M records. After an attempted extortion failed, the attackers published the data publicly, which included 5.1M unique email addresses along with associated account information such as names, phone numbers and physical addresses. Panera Bread subsequently confirmed that "the data involved is contact information" and that authorities were notified.
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.
