Well..if we face any problem in connecting to any computer in a network,first thing we try to do is PING the comouter. Ping is a computer network tool used to test whether a particular host is reachable across an IP network. It is also used to self test the network interface card of the computer, or as a speed test.
It works by sending ICMP “echo request” packets to the target host and listening for ICMP “echo response” replies.
1.What is the problem??
Can you imagine that this same technique can be used by hackers too?? Computer hackers can ping to find the potentially weak victims on the internet.By pinging onto one system,hackers can determine if they have any sort of interest on that.
2.How can You Block this??
so many methods can be followed but i would be posting in here,one of the simplest tool that does "safegurding" job.
If you can configure your computer to block ping response, it should heightens the level of security for your computer.
Plax Network Suite is an easy to use collection of network tools which give you full control over the internet activity of your computer.
Designed for quick access, the Windows Firewall button provides an instant ON/OFF switch for Windows XP Firewall. Designed to integrate with Windows, and be powerful but simple to use, Windows Firewall operates deep under cover, without bothering you at all.
It can help stop viruses and worms reaching your computer, ask for permission to block or unblock certain connection requests from applications and software, and create a security log if required. It's an automatic first line of defense for those who don't have any other software installed.
Note:I wont say it to be the best amongst the antivirus tools,but yeah,as far as the security upfront is concerned,its preety fine with it.For me,Kaspersky is still the best,so far.