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What Is a Firewall and Do you Need One?

Adam Levin

A firewall is a network security device or program designed to prevent unauthorized and malicious internet traffic from entering a private network or device. Firewalls filter incoming network traffic at a computer’s entry points, or ports, where information is exchanged between the computer network and external devices.

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Next-Generation Firewalls: A comprehensive guide for network security modernization

CyberSecurity Insiders

The terms computer security, information security and cybersecurity were practically non-existent in the 1980s, but believe it or not, firewalls have existed in some form since that time. But what sets NGFWs apart from traditional firewalls? NGFWs offer several advantages over traditional firewalls.

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Cloudflare Unveils a Firewall Designed to Keep LLMs Safe

Security Boulevard

Cloudflare wants to help organizations wall off their large-language models (LLMs) from cyberthreats and give enterprises an AI framework to ward off risks, many of which are themselves based on the emerging technology. The post Cloudflare Unveils a Firewall Designed to Keep LLMs Safe appeared first on Security Boulevard.

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Simplify Network Security with Cisco Secure Firewall-as-a-service (FWaaS) on AWS

Cisco Security

With traditional firewalls, network security teams are charged with the heavy lifting of deploying new solutions. To become more agile, organizations are increasingly moving towards deploying SaaS-based security offerings hosted directly by vendors. What does this mean for Cisco Secure Firewall customers?

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What Is Stateful Inspection in Network Security? Ultimate Guide

eSecurity Planet

Stateful inspection is a firewall feature that filters data packets based on the context of previous data packets. This important feature uses header information from established communication connections to improve overall security. Table of Contents Toggle How Does Stateful Inspection Work? Stateless protocols (UDP, HTTP, etc.)

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What Is a Firewall Policy? Steps, Examples & Free Template

eSecurity Planet

A firewall policy is a set of rules and standards designed to control network traffic between an organization’s internal network and the internet. It aims to prevent unauthorized access, manage data movement, and guard against potential security threats.

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How to Perform a Firewall Audit in 11 Steps (+Free Checklist)

eSecurity Planet

A firewall audit is a procedure for reviewing and reconfiguring firewalls as needed so they still suit your organization’s security goals. Over time, business network needs, traffic patterns, and application access change. Table of Contents Toggle How Does a Firewall Audit Work?