Data from a breach at cancer-screening company Exact Sciences, now part of Abbott, was indexed by Have I Been Pwned with about 10.9 million unique email addresses. The extortion group ShinyHunters claimed the intrusion, saying it reached internal legacy systems and then pivoted from a corporate single-sign-on account into connected cloud services such as Microsoft 365, Salesforce, and others to steal data. It is part of a wider ShinyHunters wave hitting medical-technology companies. Abbott is investigating and disputed the attacker's characterization of some data. The pattern, one stolen sign-on unlocking many linked services, is now a recurring route to large healthcare breaches.
Dental benefits administrator DentaQuest, part of Sun Life, is notifying more than 23 million people that their personal and health information was stolen in a May 2026 network intrusion. The company found unauthorized access on May 20 and determined attackers were in its network between May 17 and 20. Exposed data includes names, addresses, Social Security numbers, member, Medicaid, and Medicare identifiers, and dental and vision health details such as diagnoses, treatments, and billing. The extortion group ShinyHunters claimed responsibility and leaked roughly 234GB. DentaQuest has confirmed at least 15 million affected, with independent analysis putting the figure above 23 million, and is offering two years of monitoring.
Glendale Community College has had data on roughly 793,000 people exposed after the extortion group ShinyHunters stole files from its student information systems. Have I Been Pwned indexed 793,925 accounts, and the attackers claim to have taken more than 62GB across roughly 304,000 files, including student records with personal identifiers, financial aid exports, immunization logs, admission checklists, and transcripts dating back to 2020. The theft came from the college's PeopleSoft Campus Solutions environment, tying it to the wider ShinyHunters campaign against Oracle PeopleSoft that has hit numerous universities and companies. The breadth of academic and personal data raises the risk of identity theft and targeted phishing against students, applicants, and staff.
Medtronic has begun notifying about 3.8 million people that their data was exposed in the breach of its corporate IT systems earlier this year, giving a concrete scale to the ShinyHunters attack it first disclosed in April. The exposed information includes names, contact details, dates of birth, Social Security numbers, and health-related data, a more sensitive set than the company initially detailed. The intrusion, which the extortion group claimed involved around nine million records, was limited to corporate systems, with Medtronic saying its products, patient safety, and device networks were not affected. Affected individuals are being offered credit monitoring, and several class-action lawsuits have followed.
The extortion group ShinyHunters has published data stolen from Moody Bible Institute, a Chicago-based Christian college, after a "pay or leak" campaign. Have I Been Pwned indexed more than 2.3 million unique email addresses along with names, physical addresses, phone numbers, and dates of birth belonging to students, alumni, donors, and supporters. ShinyHunters claimed a much larger haul spanning enrollment, donor, payroll, and communications systems, and some reporting ties the intrusion to the same ShinyHunters campaign that exploited an Oracle PeopleSoft flaw. Most of the leaked email addresses had already appeared in earlier breaches, raising the risk of credential stuffing and targeted phishing.
Medical device maker Medtronic has begun notifying customers that their personal data was exposed in a breach of its corporate IT systems earlier this year, an attack claimed by the extortion group ShinyHunters. Medtronic noticed unusual activity in mid-April and its investigation found that an unauthorized actor had access between April 13 and 19. ShinyHunters claimed to hold roughly nine million records containing personal and internal corporate data, and Medtronic did not pay, with its listing later removed from the group's leak site. The company says its products, patient safety, and the networks running its medical devices were not affected, crediting separation between corporate and clinical systems.
Nissan has disclosed that current and former employees' data was stolen after attackers exploited a zero-day flaw in Oracle PeopleSoft, the software it uses to manage payroll, tax, and personnel records. In a filing with California's attorney general, Nissan said Oracle informed it that the personnel records of hundreds of companies may have been taken. The attacks, tied to the extortion group ShinyHunters, exploited PeopleSoft vulnerability CVE-2026-35273 as a zero-day between late May and early June, primarily hitting education organizations, before Oracle issued mitigations. ShinyHunters has begun leaking stolen data, with Nissan joining victims that include the University of Nottingham and a US insurance regulator group.
Food distribution giant Sysco was hit by the extortion group ShinyHunters in a "pay or leak" attack, and after the company did not pay, the stolen data was published. Have I Been Pwned has indexed 2,691,852 unique email addresses belonging to staff and customers, alongside what is described as largely corporate contact information. The breach fits ShinyHunters' sweeping 2026 campaign against large enterprises, which has typically relied on social engineering and compromised SaaS integrations rather than software exploits. Exposed business contact data is useful for convincing, targeted phishing aimed at Sysco's staff, customers, and partners.
Data from a breach of American Tower, one of the largest wireless communications infrastructure companies, has been indexed by Have I Been Pwned, which added 216,601 affected accounts. The extortion group ShinyHunters is linked to the incident, consistent with its sweeping 2026 campaign that has used social engineering against staff to reach corporate systems and exfiltrate data at major enterprises. American Tower operates critical telecom infrastructure, making any exposure of employee or partner data a concern for follow-on phishing and targeted attacks. Exposed contact details are commonly reused for convincing phishing against affected individuals and the organization.
The extortion group ShinyHunters has published data stolen from Madison Square Garden Sports, owner of the New York Knicks and Rangers, after the company did not pay. Have I Been Pwned indexed 9,796,738 unique email addresses spanning staff and customers, alongside extensive personal, employment, and customer-relationship records including names, addresses, phone numbers, and some dates of birth. Reporting on the leak describes an internal "Talent" file profiling former players, executives' family members, and celebrities, in some cases with so-called threat assessments. The intrusion reportedly began with voice-phishing of staff, the same social-engineering pattern behind ShinyHunters' wider 2026 campaign against large enterprises.
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