DentaQuest
May 23, 2026
•[ data leak, extortion, healthcare ]
In May 2026, the dental benefits administrator DentaQuest was the target of a ShinyHunters "pay or leak" extortion campaign that resulted in the group publicly publishing hundreds of gigabytes of data allegedly obtained from the company. The data included 2.6M unique email addresses along with names, addresses and phone numbers. Much of the data appeared in healthcare enrollment files (ASC X12 transaction sets) with some containing Medicaid IDs, while additional data appeared in member records and related files. DentaQuest acknowledged "a cybersecurity incident involving unauthorized access to a limited portion of our network", and advised they had contained the attack and mitigated the threat.
Atlas Menu
May 30, 2026
•[ data breach, gaming, data leak ]
In May 2026, the GTA V and CS2 cheat service Atlas Menu suffered a data breach. An attacker claimed to have gained access to all Atlas systems and published the service's database to a public GitHub repository. The incident exposed 64k unique email addresses along with usernames, IP addresses, support tickets and passwords stored as bcrypt hashes.
Mytheresa
April 12, 2026
•[ extortion, data leak, ShinyHunters ]
In April 2026, the luxury fashion e-commerce platform Mytheresa was listed as a victim of the ShinyHunters "pay or leak" extortion group. After the ransom deadline passed, the group publicly released the data which contained 84k unique email addresses. The exposed data also included names, phone numbers, physical addresses, purchases and partial credit card data including card type, last 4 digits and expiry date.
Kemper
April 15, 2026
•[ ransomware, social engineering, extortion ]
In April 2026, the American insurance holding company Kemper Corporation was named by the ShinyHunters ransomware group in a "pay or leak" extortion campaign. The attackers allegedly accessed Kemper's Salesforce environment via social engineering as part of a broader campaign targeting hundreds of organisations using the same method. The group later published tens of gigabytes of data they claimed included internal directory data, Salesforce records and Stripe payment logs. Among the 269k unique email addresses were names, phone numbers, physical addresses and partial payment card data including the last 4 digits, expiry dates and card brands. Kemper confirmed the incident and stated they had engaged third-party cybersecurity experts and notified law enforcement.
Charter
May 23, 2026
•[ extortion, data leak, ShinyHunters ]
In May 2026, the telecommunications company Charter Communications (the parent company behind the consumer broadband and cable brand Spectrum) was named by the ShinyHunters group in a "pay or leak" extortion campaign. The group later published the data, which exposed 4.9M unique email addresses along with names, phone numbers and physical addresses. A subset of approximately 85k records originating from an internal employee directory also included job titles. Charter confirmed the incident, but stated that no sensitive personal information or customer proprietary network information (CPNI) was exfiltrated.
Ameriprise
March 2, 2026
•[ extortion, data leak, ShinyHunters ]
In March 2026, the financial services firm Ameriprise Financial was named by the ShinyHunters group in a "pay or leak" extortion campaign. The group claimed possession of more than 200GB of compressed data exfiltrated from Ameriprise's Salesforce environment and internal SharePoint infrastructure, and subsequently published the data after negotiations allegedly failed. The published data contained 500k unique email addresses as well as names, phone numbers, physical addresses and employer information. In their disclosure to state attorneys general, Ameriprise reported 47,876 affected people; the larger email address population represents contacts from Ameriprise's broader operational systems, including internal staff. Ameriprise further advised that they have "implemented heightened monitoring of your account(s) to include enhanced identity verification procedures".
7-Eleven
April 8, 2026
•[ extortion, data leak, ShinyHunters ]
In April 2026, 7-Eleven was the victim of a "pay or leak" extortion campaign by ShinyHunters, with the data later published that month. The incident exposed 185k unique email addresses, along with names, physical addresses, dates of birth and phone numbers. A small number of records also contained additional exposed data fields. The company later advised the breach was limited to "certain 7-Eleven systems used to store franchisee documents", a statement consistent with the exposed data.
CTT
April 26, 2026
•[ data leak, personally identifiable information, postal service ]
In April 2026, data allegedly obtained from CTT, Portugals national postal service, was posted to a public hacking forum. The data included 468k unique email addresses along with names, phone numbers and parcel tracking numbers which can be used to retrieve the tracking history of the parcel.
iMenu360
August 11, 2022
•[ data leak, customer records, PII ]
In approximately late 2022, 3.4M customer records from iMenu360 ("The world's #1 most trusted online ordering platform") were exposed. The data appeared to be from ordering systems using the platform and contained email and physical addresses, latitudes and longitudes, names and phone numbers. Numerous attempts were made to contact iMenu360 about the incident between April and August 2023, but no response was received.
Canada Life
April 20, 2026
•[ extortion, data leak, phishing ]
In April 2026, Canada Life was the victim of a "pay or leak" extortion campaign by the ShinyHunters group. The group subsequently published the data which contained over 200k unique email addresses along with names, phone numbers, physical addresses and, in some cases, customer support tickets. In their disclosure notice, Canada Life advised that "it is a small proportion of our customers who may have been impacted". In the wake of the incident, Canada Life also published an alert cautioning customers to be wary of phishing attacks, a pattern often seen after the public release of breached data.
Abrigo
April 14, 2026
•[ extortion, data leak, fintech ]
In April 2026, the fintech software company Abrigo was targeted in a "pay or leak" extortion attempt by the ShinyHunters group. Shortly after, data allegedly taken from the company's Salesforce instance was published publicly and contained over 700k unique email addresses belonging to both Abrigo staff and external contacts. Whilst separate from Abrigo's Salesforce compromise via the Drift application connector the previous year, the data fields described in that incident are consistent with the ShinyHunters data, namely that it was "business contact information" including "institution name, employee name, email addresses, and phone numbers".
Dígitro Tecnologia
April 8, 2026
•[ database leak, source code leak, internal files ]
CTIR Gov warned that databases, source-code repositories, and internal files from Dgitro Tecnologia were published by DDoSecrets.
Matsuyama Municipal Housing Management Center
February 3, 2026
•[ ransomware, data leak, resident information ]
Resident information for Matsuyama municipal housing was leaked after a ransomware attack affected servers used by the housing-management contractor.
Hosokawa Micron Corporation
February 2, 2026
•[ unauthorized access, cloud storage breach, data leak ]
Hosokawa Micron confirmed unauthorized access to one cloud storage account and leakage of personal data stored there.
Awa Bank
March 25, 2026
•[ unauthorized access, data leak, test environment exposure ]
Awa Bank confirmed that unauthorized access to an OA system test environment caused leakage of 27,745 customer, shareholder, and related-party records.
Medica Publishing Co., Ltd
March 13, 2026
•[ ransomware, data leak, personal information ]
A ransomware attack encrypted Medica Publishings systems on March 13, 2026, halting order processing, shipping, and customer inquiries, and the company later confirmed leakage of some personal and transaction-related information.
Siam Okamura International Co., Ltd.
December 23, 2025
•[ unauthorized access, data leak, server breach ]
Siam Okamura International identified suspected unauthorized access to certain servers on December 23, 2025, and later found information suspected to have been leaked online; the details and extent remained under investigation.
Murata Manufacturing Co., Ltd.
February 28, 2026
•[ unauthorized access, data leak, IT environment breach ]
Murata Manufacturing confirmed unauthorized third-party access to its IT environment and improper access to data, with later updates identifying possible leakage of employee, associated-person, customer, supplier, stakeholder, and business partner information.
Vimeo
April 28, 2026
•[ unauthorized access, data leak, stolen data ]
Vimeo confirmed that an unauthorized actor accessed certain user and customer data through the Anodot breach; ShinyHunters later leaked 106GB of stolen data affecting 119,200 email addresses.
McGraw Hill
April 14, 2026
•[ misconfiguration, data leak, extortion ]
McGraw Hill confirmed that a Salesforce-hosted webpage misconfiguration exposed limited contact data, while ShinyHunters claimed millions of Salesforce records and attempted extortion.
