Marshfield Clinic notifies patients of possible August data breach

EAU CLAIRE / MARSHFIELD (WQOW) - Marshfield Clinic Health System is notifying patients whose data may have been affected in an August data breach.

According to a Marshfield Clinic spokesperson, they became aware of unusual activity in employee email accounts around Aug. 27. An investigation found there was unauthorized access to the email accounts between Aug. 26 and 27.

It is unclear if this breach impacted all Marshfield Clinic locations. 

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