An Introduction to Cybersecurity and Information Security

Cybersecurity, computer network security or e-security is the prevention of information systems and networks from vulnerability, theft of data, or intentional misuse of their resources, and from the interruption or misdirection of their services. There has been a notable increase in cyber crimes over the past several years, primarily due to the prevalence of the internet. Cybersecurity is typically used to refer to a hybrid of protection and attack technologies. Protection refers to the identification, analysis and generation of defense against any attacks, while attack is a proactive effort to bring an attack to stop. While there has been a lot of research and debate on the subject, the following information should help you understand the field.

The first step to understanding the meaning of cybersecurity is to be able to understand what it is not. There are multiple layers of protection and defense that go into protecting your networks. The first layer of defense is often the simplest and the easiest to deploy – firewalls and anti-virus programs. In this single measure, there is a deployment of multiple layers of security that work together to try and keep data and information out of harm’s way in the event that an attack were to occur.

Once an attacker has gained unauthorized access into a system, they can do a wide range of harmful things, ranging from data mining to financial fraud and identity theft. The second layer of protection consists of various detection and prevention technologies. Software programs and devices are deployed that can detect suspicious activity and set off alarms in the presence of malicious software. Many modern firewalls and anti-virus programs are capable of filtering out a wide variety of known attacks, although not all attacks are detected. Lastly, an application layer of protection such as Intrusion Detection System (IDS) watches the network for any attempts to infiltrate it and blocks them before they are given the opportunity to do any damage.