The PA-4000 Series is based on patent-pending traffic classification technology. It enables the accurate identification of hundreds of applications that pass undetected though traditional firewalls. Palo Alto Networks also announced today that it has secured $18 million in Series B financing from Globespan Capital Partners, Greylock Partners and Sequoia Capital. This brings total financing to $28 million, bringing total funding to a total of $38 million. The company was founded by security industry visionary Nir Zuk, one of the creators of stateful inspection technology.”]
Source: https://www.darkreading.com/attacks-breaches/palo-alto-networks-unveils-its-next-gen-firewall