ISS’ Proventia unifies firewall, virtual private network, anti-virus, intrusion detection and prevention into one engine, under one management system, to protect at the network and the gateway. ISS offers three products: Site Protector remains the overall management product. ISS also offers “content blades” which can be enabled or disabled in software. ISS: “Proventias simplified protection for every layer of business infrastructure eliminates the complexity associated with todays legacy security products and greatly reduces the total cost of ownership””]
Source: https://taosecurity.blogspot.com/2003/10/iss-announces-proventia-products.html