"Blocked because of IPS attack
An attack was detected, originating from your system. Please contact the system administrator."
I received this message when I tried to visit a website just now. Its not sgforum, just a ordinary education school website.
Anyone knows what is this message about?
http://en.wikipedia.org/wiki/Intrusion_prevention_system
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Most probably your PC has been infected, and thus the ips works and blocks you from entering the site
Download this, http://www.malwarebytes.org/
Install it, update definitions before you scan - Do a full scan.
Actually, if your system is not compromised, you don't have to worry about it.
Maybe someone allocated the same IP due to NAT on ISP probably had their systems compromised.
Do 1 check, if it is clean, just wait like 12hrs. Usually network intrusion prevention systems will lift blocks over a period of time.