The alert appears in a Web browser and directs the customer to Comcast antivirus specialists who "diagnose the problem and take steps to fix it," according to the ISP.

Comcast says it's providing affected customers with 12 months of free identity theft protection. In addition, the notice states that there has been no evidence yet of this private data being ...

it would no longer able to provide notices or credit monitoring protection to individuals impacted by the incident,” Comcast said in the sample notice to customers. “As such, we are contacting ...