Ministry of Higher Education, Research and Space (Parcoursup data-management module)
October 1, 2025
•[ unauthorized access, credential compromise, data leak ]
Fraudulent access using legitimate credentials to a Parcoursup data-management module for the Occitanie academic region in October 2025 resulted in unauthorized exfiltration of personal data for about 705,000 candidates from the 2023 and 2025 sessions.
Anthropic
April 21, 2026
•[ unauthorized access, third-party vendor breach, data leak ]
A private online group reportedly gained unauthorized access to Anthropics limited-release Claude Mythos Preview model through a third-party vendor environment.
Nordenta
April 20, 2026
•[ ransomware, data leak ]
The Danish dental supplier Nordenta was listed on the Kairos ransomware leak site around April 20, 2026, and Computerworld reported on April 22 that the company had been hit by ransomware. Kairos claimed to have stolen 1.68 TB of data and used the leak-site post to pressure company executives, but the specific data categories and operational impact were not confirmed in the reviewed sources.
Agence nationale des titres sécurisés (ANTS)
April 15, 2026
•[ unauthorized access, data leak, identity document theft ]
On April 15, 2026, ANTS, also known as France Titres, detected unauthorized access to the ants.gouv.fr portal. The agency confirmed a data breach involving citizen identity-document portal data, while breach3d claimed to have stolen up to 19 million records and offered them for sale; ANTS did not specify the total number of affected citizens.
Winona County
April 6, 2026
•[ ransomware, data leak, government ]
Winona County, Minnesota experienced a ransomware attack that began April 6, 2026 and was discovered April 7. Officials took affected systems offline, declared a local emergency, requested Minnesota National Guard assistance, and notified the FBI. Later reporting confirmed cybercriminals released information taken from the county network; emergency services and 911 remained operational, while vital statistics and DMV systems were among those impacted.
Mercor
March 24, 2026
•[ supply-chain compromise, data leak, source code theft ]
Mercor confirmed it was affected by the LiteLLM supply-chain compromise linked to TeamPCP. Lapsus$ claimed to have stolen more than 4 TB of Mercor data, including a 200+ GB database, nearly 1 TB of source code, and 3 TB of videos and other information; TechCrunch reviewed a sample containing Slack data, ticketing data, and apparent contractor-video material, while Mercor said it contained and remediated the incident and was investigating with outside forensics experts.
Cushman & Wakefield
May 5, 2026
•[ vishing, extortion, data leak ]
In May 2026, the real estate services firm Cushman & Wakefield was the target of a "pay or leak" extortion campaign by the ShinyHunters group. Following the threat, the group publicly published data they alleged had been obtained from the firm, consisting mostly of C&W email addresses along with tens of thousands of external email addresses and corporate contact records. The exposed data was primarily business information, including names, job titles, company addresses and phone numbers.
Zara
April 15, 2026
•[ extortion, data leak, third-party risk ]
In April 2026, the fashion brand Zara was among a number of organisations targeted by the ShinyHunters extortion group as part of their "pay or leak" campaign. The group claimed the breach was related to a compromise of the Anodot analytics platform and subsequently published a terabyte of data allegedly including 95M support ticket records. The data contained 197k unique email addresses alongside product SKUs, order IDs and the market the support ticket originated in. Zara's parent company Inditex advised that the incident didn't affect passwords or payment information.
Vimeo
April 28, 2026
•[ extortion, data leak, third-party breach ]
In April 2026, the ShinyHunters extortion group listed Vimeo on their extortion portal as part of their "pay or leak" campaign. They subsequently published hundreds of gigabytes of data, predominantly consisting of video titles, technical data and metadata. The data also included 119k unique email addresses, sometimes accompanied by names. Vimeo attributed the exposure to a breach of Anodot, a third-party analytics vendor, and advised the incident does not include "Vimeo video content, valid user login credentials, or payment card information".
Marcus & Millichap
April 12, 2026
•[ hacking, extortion, data leak ]
In April 2026, the commercial real estate brokerage firm Marcus & Millichap was named as one of multiple alleged victims of the ShinyHunters hacking and extortion group. Data alleged to have been obtained from the company was subsequently released publicly and included 1.8M unique email addresses, along with names, phone numbers and employment-related information including employer, job title and physical company address. In their disclosure notice, Marcus & Millichap advised that data which may have been accessed appeared limited to "company forms, templates, marketing materials, and general contact information".
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.
Aman
April 20, 2026
•[ extortion, data leak, CRM breach ]
In April 2026, the ultra-luxury hotel brand Aman was named by ShinyHunters as the target of a "pay or leak" extortion campaign, with the data allegedly obtained from their Salesforce CRM. The data was subsequently leaked publicly and contained over 200k unique email addresses. Whilst not present on all records, the data also included genders, physical addresses, phone numbers, nationalities, dates of birth, spouse names and VIP status codes.
Pitney Bowes
April 20, 2026
•[ extortion, data leak, hacking collective ]
In April 2026, the hacking collective ShinyHunters claimed to have obtained data from Pitney Bowes as part of a broader extortion campaign that also named several other organisations. After negotiations allegedly failed, the group publicly released the data which included 8.2M unique email addresses, along with names, phone numbers and physical addresses. A subset of the data also included Pitney Bowes employee records with job titles.
ADT
April 20, 2026
•[ data breach, extortion, data leak ]
In April 2026, home security firm ADT confirmed a data breach by ShinyHunters, which listed the company on its website as part of a "pay or leak" extortion attempt. The breach impacted 5.5M unique email addresses along with names, phone numbers and physical addresses. ADT also advised that "in a small percentage of cases, dates of birth and the last four digits of Social Security numbers or Tax IDs were included" and that it had contacted all affected people.
Udemy
April 24, 2026
•[ data leak, extortion, cybercrime ]
In April 2026, online training company Udemy was the victim of a pay or leak extortion attempt perpetrated by the ShinyHunters group. The data was subsequently leaked publicly and contained 1.4M unique email addresses belonging to customers and instructors. The data also included names, physical addresses, phone numbers, employer information and instructor payout methods including PayPal, cheque and bank transfer.
Carnival
April 18, 2026
•[ phishing, extortion, data leak ]
In April 2026, the notorious hacking collective ShinyHunters claimed they had obtained a substantial volume of data belonging to the Carnival cruise operator and attempted to extort the organisation to prevent the data from being leaked. The following week, the group published the data publicly, which contained 8.7M records with 7.5M unique email addresses. The data contained fields indicating it related to the Mariner Society loyalty program run by Holland America, a cruise line brand under Carnival, and included names, dates of birth, genders and data relating to status within the loyalty program. Carnival acknowledged a phishing incident involving a single user account and advised they were working to better understand the scope of the unauthorised activity.
McGraw Hill
April 10, 2026
•[ data breach, extortion, misconfiguration ]
In April 2026, education company McGraw Hill confirmed a data breach following an extortion attempt. Attributed to a Salesforce misconfiguration, the company stated the incident exposed "a limited set of data from a webpage hosted by Salesforce on its platform". More than 100GB of data was later publicly distributed, containing 13.5M unique email addresses across multiple files, with additional fields such as name, physical address and phone number appearing inconsistently across some records.
Amtrak
April 3, 2026
•[ data leak, ransomware, ShinyHunters ]
In April 2026, the hacking group ShinyHunters claimed they had breached Amtrak. The group typically compromises organisations' Salesforce instances before demanding a ransom and later, if not paid, dumping the data publicly. The exposed data contained over 2M unique email addresses along with names, physical addresses and customer support records.
Hallmark
March 31, 2026
•[ data leak, extortion, support tickets ]
In March 2026, Hallmark suffered an alleged breach and subsequent extortion after attackers gained access to data stored within Salesforce. The data was later published after the extortion deadline passed, exposing 1.7M unique email addresses across both Hallmark and the Hallmark+ streaming service, along with names, phone numbers, physical addresses and support tickets.
The Left Party
March 26, 2026
•[ ransomware, data leak, employee data ]
Die Linke said its federal headquarters IT systems were hit by a ransomware attack on March 26, 2026, causing partial disruption, while outside reporting tied the incident to Qilin and a claim of stolen internal and employee data.
