Network security, at its core, is meant to keep information safe. Whether it’s your personal information, your company’s data, or something else. You don’t want anything to find its way into the hands of anyone who shouldn’t have it. A secure network helps IT employees prevent unauthorized people from accessing or misusing files. As the world becomes more connected, and we see more of “the internet of things,” cyber attacks will become more frequent. Information can be used as currency by thieves and hackers. Some malicious intruders might modify or destroy files. Nobody wants to fall victim to these attacks, and there are many reasons why strong network security is important.
Network security is a complicated subject because it comes in different forms. It’s more or less physical and virtual layers of defenses meant to stop unauthorized users. Basic forms of security include access control (limiting the number of people or devices with access to a network) and firewalls (a barrier between your network and outside networks). Antivirus and anti-malware software can scan systems for threats and quarantine them. Most computer users have these.
More advanced forms of network security deal with a larger variety of potential threats. One example is a denial-of-service attack, where attackers flood a system with requests until it crashes. These can be difficult to stop while still providing uninterrupted service for authorized users. It’s also important to keep backups of data, just in case something bad happens, and keep that data in a secure location. In some cases, physical security is necessary.
The real advantage of network security is peace of mind. It’s hard to be 100% safe, but with decent security, people won’t have to worry about their computer(s) becoming compromised. People should take steps to be safe while using a computer or mobile device. It’s like locking the front door of your home.