One of their great lengths is offering McAfee virus-scanning software, which is widely known and hated in security circles as largely ineffective, intrusive, and a real performance-killer on a Windows PC. (It doesn't run on Linux-- shame.)
The best part of the Comcast email is the Global Security Threat Level indicator in the top right corner of the message:

I have no idea what that means, but apparently we're at Critical level. Yikes! Run for the hills! Hide the women and children!
Oh, and I can't unsubscribe from this junk. At the bottom in the fine print it says
This is a service-related email. Comcast will occasionally send you service-related emails to inform you of service upgrades or new benefits to your Comcast High-Speed Internet service.
In other words, "Screw you, we're going to send you whatever bad offers and scary-sounding garbage we want and there's nothing you can do about it. Mwah ha haaaaa!"









