Hackers were able to breach a system tied to HealthCare.gov last week and steal the private personal data of tens of thousands of people.

In an announcement made Friday, the Centers for Medicare and Medicaid Services (CMS) revealed that roughly 75,000 people were affected by the incident.

The Associated Press reports the hackers were able to access the data after infiltrating “a government computer system that interacts with HealthCare.gov.”

Technicians shut down the infiltrated system at some point after discovering the breach and are looking to bring it back online by next month.

“Officials said the hacked system is used by insurance agents and brokers to directly enroll customers for subsidized health insurance under the Affordable Care Act,” the AP notes. “All other sign-up systems are working.”

The CMS says law enforcement was informed of the attack and are presumably investigating the matter. Customers whose data was taken during the breach will also reportedly be notified.

“Our number one priority is the safety and security of the Americans we serve,” CMS Administrator Seema Verma said. “We will continue to work around the clock to help those potentially impacted and ensure the protection of consumer information.”

The system will likely reappear around Nov. 1 when health care sign-up season officially begins.

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