AT&T Internet Service 로부터 Copyright Infringement Alert 를 받았습니다. 무엇을 해야 되는지요?

한국에 있는 친구가 자기 웹사이트에 동영상 (영화, 드라마 등) 을 올려놓아 다운받아 보곤 했습나다.

어제밤에 이메일이 하나 왔는데, AT&T Internet Service 로부터 온 Copyright Infringement Alert 였습니다.

Hi XX, 
We've received at least one more notice from a movie studio, record company, television studio or other party that owns copyrighted material that you or someone using your Internet service appears to have shared copyrighted content without the copyright owner's permission. Information about the notice we received is located at the end of this email. 
We're sending you this Alert at their request and to let you know that sharing copyrighted content without the copyright owner's permission can be against the law and violate our AT&T Internet Terms of Service and Acceptable Use Policy, which apply to all users of your account.
As the primary account holder, you're responsible for making sure your Internet account is used properly. Repeated violations or misuse could result in your AT&T Internet service being limited or even terminated in appropriate circumstances. We're sending you this Alert so that you can take actions to resolve the issue.

What do I need to do now?

Acknowledge you received this Alert by going to att.com/copyright-infringement or clicking the button below. Simply log in with your User ID (primary email address) and password.

Note: Acknowledgement does not imply admission of copyright infringement. It simply confirms that you've received this notice, and that you will not engage in any infringing conduct.

Copyright notice summary

어제 위의 이메일을 받기전에 영화 하나를 더 받았는데, 그것에 대한 이메일은 아직 받지 않은 상태입니다.

제가 해야되는 것은 무엇인가요? (더이상 다운로드 받지않은것 이외에...)

혹시, 경험있으신 분 있으신지요?