Threat watch / Attack

Myriad Genetics: network intrusion suspends genetic testing and order systems

Breaches & extortion High Confirmed First seen 2 Nov 2026 · updated 9 Nov 2026

On November 2, US genetic testing company Myriad Genetics "detected unauthorized access within its information technology network environment". It temporarily suspended its testing operations and order management systems and reset certain credentials. In a filing with the SEC on November 5, it says most systems are back and that it is still assessing whether patient records were accessed.

Sector
Health
Way in
Not public yet
Product or vendor
None named
How it happened
Not public yet Checked 9 Nov 2026
What was stolen
Not public yet Checked 9 Nov 2026
Who was impacted
Myriad Genetics' testing operations and order management, suspended while the company responded. Whether patient records were accessed is still under investigation, the company says.[1] Checked 9 Nov 2026
Threat actor
Not attributed

Timeline

  1. Myriad Genetics detects unauthorized access in its IT network, starts its incident response, temporarily suspends testing operations and order management systems, and resets certain system credentials. [1]
  2. In a Form 8-K filed with the SEC, the company says "most of the Company's systems have returned to normal operations", that the full scope is still under investigation, including "whether any patient records were accessed", and that it does not expect a material adverse effect on its business. [1]

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