Skip to content

Your employees live and work in America, why is someone in China accessing your accounting data.

Firewall graphic

ACL Builder illustration

For many small business that operate in America, there is no reason to allow the entire planet access to business resources. Sure, SMTP and WWW traffic can come from anywhere, and you should keep that in mind, but that isn’t a compelling reason to allow everyone in China access to your accounting system, or that “Remote Desktop” connection that you recommended against but they had you configure anyway.

Simply blocking a handful of countries at your networks edge can lower Probing and Attacks by 60%. In the Akamai “State of the Internet” Report Q4 2014 41% of attack traffic originated from IP addresses in China. That is 3 times more attack traffic than traffic that originated in America. Tack on 8 others from the top ten and that would block 60% of attack traffic.

There are plenty of resources on the internet that turn creating the rule sets into a trivial task. Some are free and some are not. The free sources include which maintains updated country network block files. has formatted those lists into some popular formats. I am launching another free resource in There I aggregate lists from multiple locations around the internet and output them in many popular formats as well. More formats and more sources are being added all the time.

Posted in

Dennis Bourn

For over two decades, Dennis Bourn and the team at Bourn Technology have been helping engineering firms, law practices and many other businesses across New Orleans and the surrounding areas get the most from the technology they value so much. To find out more information about what the right MSP can bring to the table, or to learn more about aligning your IT with your long-term goals as a business, please don't delay - contact Bourn Technology today.

Leave a Comment

Stay in the Know

Subscribe to our email newsletter today to receive updates on the latest news, cybersecurity tips and tricks and more. Enter your name and email address below to be the first to know.

Download Your FREE E-book Today

efficient business ebook cover

Not everything is black and white in business. Yet the importance of business efficiency is indisputable. To find out everything you need to know about the best choices for your business, download your copy of our free eBook - Efficient Businesses Run On Efficient I.T.

Ebook download - blog sidebar