Using firewallls for securing a pc from malware
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Answer:
You’ve likely heard the word ‘firewall’ used to describe a measure of prevention against cyber criminals. But that doesn’t mean you know how a firewall actually works, does it?
Don’t worry—the truth is that most people don’t how a firewall works; they just expect it to do its job. But it’s actually a lot simpler than you might think. Once you learn a little more about firewalls, you might feel more confident about installing one on your home computer, if you haven’t already. If you’re already using a firewall to prevent cyber attacks, perhaps learning more about how it works will improve your ability to manage the firewall with greater personalization at home and in the office.
What Is a Firewall?
It’s not really a wall at all—it’s more like a filter. It would actually be more accurate if firewalls were called ‘firefilters’ because they’re not built to keep everything out. Instead, firewalls are designed to filter threatening communications.
Firewalls function using a system of either inclusive or exclusive parameters, allowing specific types of communication in or excluding others. Generally, a firewall is controlled by an access control list, which has a particular set of guidelines that allow or resist access to specific computer communications. These guidelines can be customized to fit any need on just about any device capable of going online.