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McKesson discloses breach after ShinyHunters claims patient data theft

Healthcare and pharmaceutical distribution giant McKesson has disclosed a cybersecurity incident involving unauthorized access to third-party applications and data theft, with the ShinyHunters extortion group claiming it stole 284 million patient data records.

McKesson is a major U.S. healthcare company and pharmaceutical distributor that provides medicines, medical supplies, technology, and services to healthcare providers and pharmacies.

CyberInsider first reported the breach earlier today, and McKesson later disclosed it in a Form 8-K filing with the U.S. Securities and Exchange Commission.

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Key Points that Matter

  1. ShinyHunters continues to demonstrate the effectiveness of social engineering against major enterprises, targeting people and trusted processes to gain access to sensitive environments.
  2. Healthcare breaches dramatically raise the stakes, with stolen patient and personal information providing valuable intelligence for highly targeted impersonation, fraud, and future vishing attacks.
  3. The attack cycle reinforces the need for layered defenses around human interaction. Voice Security can help stop malicious callers before they reach employees and turn trust into initial access.

You Can Stop Voice-Based Threats

The Voice Channel has become the most exploited pathway for threat actors. Voice Security is no longer a nice to have, but a critical mandate.

Mutare’s Voice Security Platform defends the voice channel as critical infrastructure. Operating as a technical control at the network edge, it stops vishing, social engineering, spoofed calls, spam storms, and GenAI-powered attacks.

We understand that every organization is at a different stage of its Voice Security journey.
Some are just beginning to understand the risks. Others are evaluating solutions or validating technologies. Take a moment to check out Test Drive to choose your path towards understanding the voice security landscape and learning about a comprehensive defense solution.

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