People are being attacked so often , main reason is vulnerable codes.
In Joomla components there are many components which are being a biggest cause of attack.
Among them Com_alphauserpoints is very attack prompt.
Some of the attackers are trying this code to get in
?option=com_alphauserpoints&view=../../../../../../../../../../../../../../../../etc/passwd%00
So better remove the vulnerable code or upgrade your components.
In next articles i will write down techniques to make your site hacker proof.
Keep your joomla safe