Potentially unsafe websites(?)

Hello NC,

For fun I often visit music chat/database websites (I've been a member of Rate Your Music (general music website) for a few years & a member of 2 Asian Pop websites, Soompi & OneHallyu both since Dec '14. I've never encountered any problems with the first 2 but often (about 1 in 3 or 4 visits) Norton has to block a web attack (either "BlackHole toolkit" or "Nuclear Assault") when I visit (before signing in) OH. In 2 years of having my own computer, OH is the only website I've used where these web attacks are happening on a regular basis.

I'm wondering if I should avoid using this website in future or is it the case that Norton is doing its job and carry on regardless? Why would this one website be so affected?

Thank you for reading, David