It was reported by MSNBC.com and Reuters in April of this year that that a lawsuit was brought in April, 2005, against Comcast, for disclosing customer information to the RIAA:
"SEATTLE - Comcast Corp., the top U.S. cable television network operator, is being sued by a Seattle-area woman for disclosing her name and contact information, court records showed on Thursday.
"In a lawsuit filed in King County, Washington, Dawnell Leadbetter said that she was contacted by a debt collection agency in January and told to pay a $4,500 for downloading copyright-protected music or face a lawsuit for hundreds of thousands of dollars.
"Leadbetter, a mother of two teenage children, was a customer of Comcast’s high-speed Internet access service."
http://msnbc.msn.com/id/7505562
Ms. Leadbetter is represented by Lory L. Lybeck of Lybeck Murphy, LLP, a law firm based in Mercer Island, Washington.