Comcast has received a notification by a copyright owner, or its authorized agent, reporting an alleged infringement of one or more copyrighted works made on or over Comcast's High-Speed Internet service (the 'Service'). The copyright owner has identified the Internet Protocol ('IP') address associated with your Service account at the time as the source of the infringing works. The works identified by the copyright owner in its notification are listed below. Comcast reminds you that use of the Service (or any part of the Service) in any manner that constitutes an infringement of any copyrighted work is a violation of Comcast's Acceptable Use Policy and may result in the suspension or termination of your Service account.
If you have any questions regarding this notice, you may direct them to Comcast in writing by sending a letter or e-mail to:
For more information regarding Comcast's copyright infringement policy, procedures, and contact information, please read our Acceptable Use Policy by clicking on the Terms of Service link at http://www.comcast.net.
Sincerely, Comcast Customer Security Assurance
Copyright work(s) identified in the notification of claimed infringement:
Infringing Work : MAGIC Filename : Future - Pluto  CR=20 Filename : Future - Pluto  CR=20 First found (UTC): 2013-02-17T15:11:40.51Z Last found (UTC): 2013-02-17T15:12:19.79Z Filesize : 109133203 bytes=20 IP Address: XXXXXXXXXXX IP Port: XXXXXX Network: BitTorrent Protocol: BitTorrent =20
First, I would contact Comcast Security and verify it is legit. The Comcast Security direct number is 888-565-4329. This was given to me by a security agent I spoke to regarding another security issue I had. Several things jump out at me and make me suspicious. I would think something of that magnitude they would notify you by USPS certified mail to make sure you receive the notice. Call them directly. Another thing, to my knowledge, I never knew Comcast had offices at that address given. Their corporate headquarters are in Philadelphia.
It's just what it says it is. Comcast is letting you know that the copyright holder claims you downloaded their property. It looks like music downloaded via Bit Torrent.
DMCA Title II, the Online Copyright Infringement Liability Limitation Act ("OCILLA"), creates a safe harbor for online service providers (OSPs, including ISPs) against copyright infringement liability, provided they meet specific requirements. They aren't accusing you of anything, just telling you that someone has notified Comcast that you infringed on their rights. By doing this, they can't be sued by the copyright holder.
If you are 100% sure you or someone in your household didn't download the item, then you'll want to double check that your network is secure and that none of the machines on your network are compromised. Change your network passwords, run multiple malware programs, do a deep scan and or a boot time scan with your anti-virus etc.
Getting legal advice from a cable guy on the internet is probably not in your best interest, if you are deeply concerned about the legal ramifications, you should contact an attorney. This is not legal advice, just information. With that said:
Most ppl simply ignore the notices. It's extremely unlikely that the copyright holder will take any legal action whatsoever.
You can file a counter notification with Comcast's designated agent if you so choose:
J. Opperman & M. Moleski/DMCA Notifications Comcast Cable Communications, LLC 1800 Bishops Gate Drive Mount Laurel, NJ 08054 U.S.A. Phone: 888.565.4329 Fax: 856.324.2940 Email: firstname.lastname@example.org
All counter notifications must satisfy the requirements of Section 512(g)(3) of the U.S. Copyright Act. (See this letter)
My concern here is why do they send something that can have legal ramifications by email. How can they prove you got the email? Just because it arrived at your email box doesn't mean you read it. Second that leaves open the door to a lot of scammers abusing that kind of letter to obtain information. To layman me it just doesn't make any logical common sense or legal sense to me.