Abstract

For decades, firewalls have protected networks from attack by restricting and inspecting traffic at the network perimeter. With cloud computing and increase demands for remote access to corporate networks, the network boundaries have widened. Not only is email hosted in the cloud, but also are virtual desktops. Apps that previously required a few exceptions on a firewall now need to validate licence subscriptions and allow updates. The user must be able to transfer data as needed to online portals and reporting services that require an ever-increasing number of custom ports configured on firewalls. Updating firewall configurations used to be a seldom event, this is now no longer the case. As well as external threats, threats from malware and venomous links, bad actors such as malicious and careless insiders act on the inside network, such that the corporate network can no longer be assumed to be safe.

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