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ShinyHunters claims McKesson data breach exposing 284 million patient records

📅 28 August 2026 at 19:16 UTC📰 Cyber InsiderView original source ↗
ShinyHunters claims McKesson data breach exposing 284 million patient records

The ShinyHunters threat group claims it compromised McKesson and obtained data on over 284 million patient records, including highly sensitive medical, identity, prescription, and healthcare provider information. CyberInsider reviewed samples privately provided by the threat actor that appear consistent with the types of information described in the data breach claims. Update: Following a request for … The post ShinyHunters claims McKesson data breach exposing 284 million patient records appeared first on CyberInsider.

🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview

ShinyHunters claimed a data breach at McKesson, exposing over 284 million patient records, including sensitive medical and identity information. The breach is attributed to voice-phishing of employees and unauthorized access to Salesforce and Snowflake instances.

⚙️Technical Details
Affected Systems
SalesforceSnowflake
Attack Vectors
Voice-phishing
💥Impact Assessment
Severity: Critical
Who Is at Risk
Tens of millions of patients
🛡️Recommended Actions
1Monitor phishing messages and fraudulent medical billing attempts
2Check credit reports for suspicious activity
3Use strong passwords and multi-factor authentication

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