avast! Pro Antivirus is for people and companies that want a customized computer security package. Antivirus and internet protection components in avast! Pro Antivirus are built for easy integration with existing firewalls in users' home or work computers. Pro Antivirus has two major additions to the core protection elements in avast! Free Antivirus: the Script Engine and the Sandbox. avast! Internet Security 2014 - Our top-selling suite secures your data, identity, and sensitive financial transactions in its unique SafeZone – and keeps hackers out with its Firewall. avast! Premier - Puts all the latest security technology at your fingertips. Comes with advanced privacy tools, full remote access, and a software update manager, to keep your most important programs updated.