My web hosting company notified me that my FTP password has been compromised. According to them, one of my PC was infected with Trojan Horse. It was the PC that my children are using. I removed the Trojan Horse (there was this file confin.sys at c:\). I went further to check the FTP logs at the server side. To my surprise, a few IPs (from China) are trying to guess my password. These hackers have really nothing better to do ?
As advised by my hosting company, I limit the FTP access from only a few IPs. This should solve my problem.