This prevents attacks on your computer.įirewalls guard your network entry point, where information is exchanged from internet sources to internal devices like your PC. How Does a Firewall Work?įirewalls were designed to analyze thoroughly the incoming traffic based on pre-established standards, or rules, to better determine how to filter the traffic coming in from unsecured or suspicious sources on the web. By doing this, your firewall protects your internal network and computer from malicious traffic that may otherwise cause damage and result in stolen information. This effectively creates a barrier, hence the name firewall, between your internal network and the incoming traffic from the internet. They function by permitting and blocking data packets based on a set of security standards. This article tackles the question: what is a firewall and how does it work? Firewall Definedįirewall is the name of a network security device that is in charge of monitoring incoming and outgoing traffic. Thankfully, advancements in internet security like firewalls have equalized the battle to protect your vital information. They continue to use tactics such as viruses, hacks, and ill-intending data to try to find information that they can use for their gain. Unfortunately, with the introduction of the Web, businesses and households must protect themselves from the crafty and malicious intents of hackers, individuals who want sensitive information about you and your business. From bloggers, YouTubers, retail, hospitals, and even government dealings, the World Wide Web and computers are no longer seen as a luxury but a must-have resource. Technology has become a vital tool for many households and businesses across the world.
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