Many companies have to keep Web traffic restrictions in the firewall fairly open for business to run smoothly. This creates a risk that intruders will find their way to the internal networks through web traffic holes in the firewall. StoneGate firewall removes the problem. StoneGate Firewall has always been able to do basic protocol validation for the web traffic. However, so far only a full-blown Intrusion Prevention System has been able to do more detailed inspection of connections to ensure Web traffic truly is Web traffic and detect any misuse of this route. Now Stonesoft introduces the deep packet inspection in the StoneGate Firewall that has been previously available only in the StoneGate Intrusion Prevention System.