i have bin reading about this brute attack on wordpress site ( for example here <http://blog.cloudflare.com/patching-the-internet-fixing-the-wordpress-br> ) i have bin google-ing it for a while but there are still some questions left to answer. 

* My wordpress site wont allow me to access wp-admin but redirects me to a error page, does that meen my site has bin hacked ?
* What to i need to today to be able to access my wp-admin site

Best , john