A Firewall is a piece of hardware and/or software which functions in a networked environment to prevent some communications forbidden by the security policy, analogous to the function of firewalls in building construction. A firewall is also called a Border Protection Device (BPD), or packet filter in BSD contexts. A firewall has the basic task of controlling traffic between different zones of trust.
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Even if you have adequate antivirus protection, are there still holes in your IT security armor? Is lack of bandwidth to manage the growing list of threats, endpoints, and security systems making your organization vulnerable?
This paper discusses reasons why visibility is so essential, and outlines how you can use visibility beyond and within the firewall to develop policies and processes that protect what you canít control.