Malicious site
You can see that he links to this as his site on Twitter here: https://twitter.com/taviso
Interestingly, I wonder if Norton doesn't like it since the name is related to an old vulnerability. From his site:
> Q. What is the origin of your domain name?
> There was a bug in early Pentiums called the f00f bug, it would cause a deadlock if you used in invalid operand with cmpxchg8b with the lock prefix. It was an important vulnerability at the time, and I thought it would be fun to own lock.cmpxchg8b.com.