Don’t think you are secured because the company has a firewall between company network and Internet. There are many resourceful persons within a network that could open up security holes within a network, therefore is a managed desktop firewall a precaution for some of the bad things that could have happened.
The best thing is to have knowledge and make sure everyone stay current on security policies.
If you have a desktop firewall at home, or if you take your office portable home with a desktop firewall you are more protected than if it were just left to Windows firewall to secure your perimeter. Firewalls are limited in the same way an antivirus software is limited, both cannot know all the threats out there.
Software is released every day, some more threatening than others, and it is also a threat that security software have close contact with your data- especially if the software want to be online all the time. You are bound to trust those people, so that is also a risk you need to consider if you have sensitive and classified information in documents and other files. In that case the best thing is to have PC’s connected to a local net without internet connection, or just PC’s that are not connected at all. You can scan files on a USB stick before you insert it into the secured PC’s.
You can never have full control over your data, there is always risks with break ins, bad hardware, accidents, or other things you have less control over. So you have to think and plan a securing plan, and start act with care for your data. Stay current with technology and encryption to keep your data safe in several locations.
A desktop firewall closes down the open connection to the Internet, every time data from one computer goes somewhere unencrypted there is a bigger risk. Assessing the risk and the means, think about severity to have information compromised or destroyed- and plan what kind of solution you need, the solution is not the most important thing here… you need to know how to handle it all.
You can have the best software in the world and your system can still be really easy to hack, because you have no clue how to deal with administration and configuration of the software when it comes to protect what is most important. Not only do you need to know the firewall, you also need to know how to secure the operating system. Especially handle policies within the system.
Managing your knowledge with firewalls and virus threats are more important than being flattered by a sales consultant who says he knows your needs, he don’t. A technical consultant may know it, but I have even met professionals who have no clue … Messing up systems that have a security worth millions… to become less than a desktop firewall solution within two hours because of clueless configuration.
So get educated!
You can have the best antivirus and firewall system, if you don’t know the operating systems or the other systems configuration you could be in deep problems, your system could be really open to all kinds of threats.