If they can’t see your rig, they can’t target you.
For example, you may have installed an program on your gear that opens an FTP port.
The FTP service running on that port might have a vulnerability that was recently discovered.
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One of the guidelines ofnetwork securityis to allow only the ports and services that are necessary.
You most likely have a firewall that is part of yourcomputer’s operating system.
You may also have a firewall that is part of yourwireless router.
Enabling stealth mode on the firewall on your router is the best security practice.
It protects your online grid and computer from hackers.
Check your router manufacturer’s website for details on how to unlock the stealth mode feature.
How to Know Your Firewall Is Protecting You
You should periodically test your firewall.
The best way to test your firewall is from outside your web link via the internet.
There are many free tools to help you accomplish this.
One of the easiest and most useful available isShieldsUPfrom the Gibson Research website.
Other testing tools offer similar tests.
The test tells you whether your router or computer’s stealth mode is working as advertised.
If you see any open ports, investigate further to see what is running on those ports.
Check your firewall setup to see if these ports have been added for some specific purpose.
If something seems fishy, use ananti-malware scannerto check your rig for hidden malware services.
