Samsung said Friday that the personal expect of some of its customers was stolen from its US computer rules earlier this year.

In a notice to customers, the South Korea-based tech giant said that in July an unauthorized inhabit acquired information from the systems. In early August, Samsung positive through its investigation that some customer data was compromised. 

The matter said it has since secured the affected systems, hired an outside cybersecurity firm and is toiling with law enforcement.

The customer data stolen may have implicated names, contact and demographic information, dates of birth and delivers registration information, Samsung says. More personal data such as Social Guarantee numbers and payment card information wasn't compromised.

Samsung didn't whisper how many customers were affected, but said it's in the treat of notifying those that were.