I wonder how much a hacker could hurt Comcast's bottom line by setting up troll-hotspots, getting people's Comcast info, and then use the info to call in and c

I wonder how much a hacker could hurt Comcast's bottom line by setting up troll-hotspots, getting people's Comcast info, and then use the info to call in and cancel accounts. I bet someone working hard could clear $1k/mo of accounts each day in a couple hours. Not to mention all the fun data leakage that happens when using open wifi portals.