In case you notice a major increase in the online traffic to your Internet site and if after you look into the visitor statistics it turns out that it comes from places across the globe or from other web servers, your site is most likely being attacked by an automatic bot. These pieces of software go through random sites looking to log in to their admin area by using a brute-force attack or to leave spam comments beneath any sort of article where this type of an option is made available. However, this is something rather popular in recent times, but if you know the IP addresses from which the attacks come, you'll be able to block them, so the bots will be unable to access your site in any way. Naturally, you are able to block IPs even if you allow only people from particular countries to access your site.