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.
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.
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.
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.
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.
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".
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.
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.
Goodwill of Greater Grand Rapids
March 27, 2026
•[ ransomware, extortion, data theft ]
Goodwill of Greater Grand Rapids said an attack disrupted part of its network environment and affected store operations, forcing locations across its West Michigan service area to operate on a cash-only basis, while outside reporting tied the incident to an Interlock ransomware extortion claim alleging theft of 80 GB of data.
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.
Aroostook Mental Health Center
March 24, 2026
•[ ransomware, data leak, network disruption ]
Aroostook Mental Health Center said a recent network disruption affected some business operations and temporarily interrupted connectivity, while outside reporting linked the incident to the Qilin ransomware group and a related leak-site extortion claim.
IntraCare
March 20, 2026
•[ unauthorized access, extortion, data breach investigation ]
IntraCare disclosed unauthorized access to its network on March 20, 2026, while outside reporting linked the incident to a The Gentlemen extortion claim; the organization said it was still investigating what information, if any, was impacted.
England Hockey
March 12, 2026
•[ ransomware, data leak, extortion ]
England Hockey said it is investigating after the AiLock ransomware group listed the organization on its leak site and claimed it stole 129GB of data. England Hockey stated it is working with internal teams and external experts to determine what occurred. Public reporting did not confirm encryption or service disruption; the confirmed effect at reporting time was a data-theft/extortion claim under investigation.
Slavia Insurance
March 10, 2026
•[ data breach, medical records, vendor error ]
Czech insurer Slavia pojiovna reported that attackers obtained about 150 GB of sensitive data, including insurance documents, medical records, and direct communications with clients. The companys spokesperson attributed the incident to an error by a supplier/vendor and said the issue was detected by Slavias security systems and remediation steps were underway to prevent recurrence. Public reporting did not identify the attacker or provide counts of affected clients, but indicated the stolen data types are sensitive and could enable fraud or targeted extortion/phishing.
Community College of Beaver County
March 9, 2026
•[ ransomware, cryptolocker, extortion ]
Community College of Beaver County said it was under an encryption-based cryptolocker attack that forced a lockdown of college IT resources, and later outside reporting tied the incident to an Interlock extortion claim alleging theft of 780 GB of data.
Soreco
March 5, 2026
•[ ransomware, data theft, extortion ]
Swiss business software provider Soreco confirmed it was hit by a ransomware attack. The Bravox group claimed responsibility on its leak site and asserted it stole roughly 118.2 GB of Soreco data while attempting to extort the company. Soreco told media that operational impact was minimal and that it did not intend to pay the ransom. Public reporting did not specify the intrusion vector, affected systems, or whether any data was published at the time of reporting.
Woflow
March 5, 2026
•[ supply-chain risk, extortion, data leak ]
ShinyHunters claimed it compromised Woflow, an AI-driven merchant data platform, in what was described as a supply-chain risk for major clients. The group threatened to leak data by March 6, 2026 if demands were not met, and claimed it stole internal corporate information, personally identifiable information, and transaction/order details. Reporting noted the group did not provide a verifiable public data sample and Woflow did not provide a public response at the time, so the incident remains an alleged breach based on the extortion claim.
Wagon Mound Public Schools
February 27, 2026
•[ ransomware, virus, extortion ]
Wagon Mound Public Schools said a virus infected its systems and shut down access across the network, and later outside reporting tied the incident to an Interlock ransomware extortion claim alleging theft of 80 GB of staff and student data.
Local 100 chapter of the Transport Workers Union of America
February 24, 2026
•[ ransomware, data leak, identity theft ]
SC Media reported that Qilin claimed to have breached TWU Local 100 (NYC transit union) and published stolen data on its leak site, putting over 41,000 active transit workers and 26,000 retirees at risk of identity theft. The report notes Qilin did not specify how much data was taken, but highlighted that the union retains sensitive employee information such as contact details, salary information, job titles, medical and insurance benefits, and retirement/pension planning information. The report frames the incident as a ransomware groups breach claim with a presumed data-theft/extortion outcome.
CarGurus
February 14, 2026
•[ data breach, extortion, data leak ]
In February 2026, the automotive marketplace CarGurus was the target of a data breach attributed to the threat actor ShinyHunters. Following an attempted extortion, the data was published publicly and contained more than 12M email addresses across multiple files including user account ID mappings, finance pre-qualification application data and dealer account and subscription information. Impacted data also included names, phone numbers, physical and IP addresses, and auto finance application outcomes.
