Ultrahuman Data Breach Exposes Customer Wellness Data
Wearable health-tech startup Ultrahuman confirmed a data breach where hackers accessed customer wellness data through credentials stolen from an employee's malware-infected laptop. Approximately 0.1% of its user base was affected.
Ultrahuman
- Domain
- ultrahuman.com
- Sector
- Health Care and Social Assistance
- Signals
- 1 linked
Signal context
First seen: Jun 3, 2026
Last updated: Jun 19, 2026
Status: Public signal
Key points
- Breach occurred on March 27, 2026, and was disclosed around June 3-4, 2026.
- Hackers gained access via credentials stolen from an employee's malware-infected laptop.
- Affected data included contact details, order/transaction history, and for a smaller group, fitness-related data.
Signal analysis
BetaThis analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.
Sector: Health Care and Social Assistance
Likely country: Location not provided
The feed marks multiple actor roles. Treat this as a review signal rather than a final attribution.
- Source type: outside the affected organization
- Source type: possible insider or internal misuse
Impact area: Confidentiality
Likely asset: User or customer data
- 6 signals in the same sector
- 22 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
Related signals
Grouped by why the signal is relevant.
Horizon Family Medical Group Data Breach
Reports emerged on June 18, 2026, of a possible data breach at Horizon Family Medical Group, a medical provider in New York's Hudson Valley region. Threat actor Incransom claimed to have stolen 7 TB of data, including medical information such as diagnoses, prescriptions, treatments, and lab results.
Council of Europe Hacked by ShinyHunters, 297 GB of Data Stolen
The notorious extortion group ShinyHunters claimed to have hacked the Council of Europe, stealing nearly 300 gigabytes of data, including employee personal information, payroll data, CVs, and medical records. The group threatened to leak the data if negotiations were not initiated.
iRhythm Holdings Discloses Cybersecurity Incident and Data Breach
iRhythm Holdings, a heart monitoring device manufacturer, identified unauthorized access to certain third-party-hosted business applications, leading to the exfiltration of sensitive patient and proprietary data. The company received an extortion demand from a threat actor.
DentaQuest Data Breach Exposes 2.6 Million Accounts
Dental benefits administrator DentaQuest confirmed a cybersecurity incident involving unauthorized access to a portion of its network, leading to the exposure of personal and health-related information for 2.6 million individuals. The ShinyHunters extortion group claimed responsibility and leaked the data.
Critical FortiClient EMS Flaws Actively Exploited to Deploy Credential Stealers
Threat actors are actively exploiting critical vulnerabilities in Fortinet FortiClient Endpoint Management Server (EMS), including CVE-2026-35616 and CVE-2026-21643. CVE-2026-35616, a critical security flaw, was actively exploited in the wild to deploy credential-stealing malware (EKZ Infostealer), prompting an emergency patch in April 2026. CVE-2026-21643 is also mentioned in active exploitation campaigns.
Oracle Health (Cerner) Legacy Server Breach
In a separate incident from the Oracle Cloud breach, Oracle Health (formerly Cerner), a provider of electronic health record (EHR) systems, experienced a data breach. A hacker reportedly used stolen credentials to access legacy servers that had not yet been migrated to Oracle Cloud, leading to the exfiltration of healthcare records from various hospitals in the United States. The incident began on January 22, 2025, and Oracle first noticed the breach on February 20, 2025. The attacker is allegedly extorting Oracle Health customers, demanding cryptocurrency payments to withhold publishing the stolen data, which likely includes protected health information.