Hello, I do the online security scan to check my laptop using Symantec Scurity Check and pcflank Advanced Port Scanner and the result is there is 5 Open ports for: - Ping. Ping is a network troubleshooting utility. It asks your computer to acknowledge its existence. If your computer responds positively to a ping, hackers are more likely to target your computer. - FTP (File Transfer Protocol). FTP is used to transfer files between your computer and other computers. Port 21 should be open only if you're running an FTP server. - SSH. TCP connections to this port might indicate a search for SSH, which has a few exploitable features. SSH is a secure replacement for Telnet. The most common uses of SSH are to securely login and copy files from a server. - Telnet. Telnet can be used to log into your computer from a terminal anywhere in the world. This port should be open only if you're running a Telnet server. - HTTP (Hypertext Transfer Protocol). HTTP is used to transfer Web pages over the Internet. Port 80 should be open only if you're running a Web server. I'm behind a router ( NETGEAR )and using Window 7 64 bit. Is it save to let this ports open or i must close all of them ?!! Best Regards, SB4

SB4, First of all verify if there is actualy a service running on your computer that listens on these ports. Because if this is not the case there is completly no security issue. You can verify this if you open a command prompt and you type in the command. Netstat -a Then look in the local adress table for yourmachine:21 (for ftp) and if the status is listening then an attacker could potentially attack this service(if this service is bad configured or has security holes). Second if you are behind a router and you didn't configure any port forwards (http://en.wikipedia.org/wiki/Port_forwarding) then is it not possible for an attacker to attack these services(HTTP,FTP, ...) on your machine. But take in mind if you have a laptop and you connect this laptop to an other public network. Then could other machines in this public network potentially attack those services. If you want to know how vulnerable you are from internet attacks behind your router you can take the shields up test at this site http://www.grc.com/x/ne.dll?rh1dkyd2 Kind Regards DFT IM me - TWiTTer: @DFTER