Why Your Existing Firewall May Be Inadequate

Most consumer-grade products come with static threat protection, meaning you are protected only from the point of your last manual security update.  But new threats emerge daily and you need to make sure your protection is up-to-date. SonicWALL security platforms are never out of date because they automatically update themselves as new threats appear. This gives you immediate protection normally afforded by only larger and more expensive solutions on the market.

Understanding How Information is Scanned Before It Enters Your Network

There are two ways security appliances scan information today – Stateful Packet and Deep Packet Inspection. The easiest way to understand the differences between stateful and deep packet inspection is to think about airport security. Years ago travelers could walk up to an airport security checkpoint with a ticket and photo ID in hand and pass a security inspection. Now, not only will a security agent check your ticket and ID, but they will also X-ray or scan the contents of your luggage, ensuring there are no hidden threats.

It is the same with stateful and deep packet inspection. Stateful packet products will only check the header of information packets coming into your network. If the header is “ok,” the packet will be sent through, potentially carrying a virus or threat in the body of the message. Deep packet inspection verifies the header and also scans the body of the packet, matching the information to a continuously updated security database to insure you are protected from the latest threats. Today, most consumer-grade products only have stateful packet inspection and can not protect your data from the majority of today’s hidden threats.

Sonicwall TZ-series data sheet

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