The block was really intentional...
And here is why...
http://www.infosyssec.com/infosyssec/infosecnews.html
End of it all - money!
Probably this is answer: http://forums.speedguide.net/showthread.php?t=245620
Yes this is SCF main idea, we have Members all over the World
It's just impertinent that some of us just can't access the site! Saying that "Your IP Range is Blacklisted", weird huh?
Just don't know yet what is the problem... only two things:
1. LOCATION 2. SITE IS HACKED (Denial of Service)!
Have you tried using proxy websites/applications to open it ? it may become slower, but it also may become browsable !
infosyssec.com actually have many resource stuffs, same as SCF news, updates, alerts, additional services, and technical stuffs.
What website is this?