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Cyber crime has become a global "epidemic" as hackers, security vulnerabilities and malware attacks continue to make headlines in the industry, causing about $600 billion in losses to global organizations and people last year, CNBC reported. It is therefore not surprising that combating such activities has become a profitable and useful cause.

So if you are considering starting a career or being promoted to a leadership role in this booming field, you may want to know which path is right for you. For example, what is the difference between Internet security, information security, information security and computer network security? In this article, we will carefully study these related but independent disciplines.

Information security

According to the SANS Institute, "Information security is a process and method designed and implemented to protect printed, electronic or any other form of confidential, private and sensitive information or data from unauthorized access, use, abuse, disclosure, destruction, modification or destruction".

"Information systems" can be any data storage point, including points outside cyberspace, which explains the difference between information security and network security: information security is designed to protect all data, while network security is designed to protect only digital data.

Internet Security (Cybersecurity)

Internet Security (Cybersecurity) is a subset of information security. According to Cisco, "Internet security is the practice of protecting systems, networks and programs from digital attacks. These attacks are usually aimed at accessing, changing or destroying sensitive information, extorting money from users, or interrupting normal business processes."

Successful Internet security practitioners must have experience in the environment they will defend and must understand theory and application. These skills are usually acquired through practical experience, education and lifelong learning.

Computer Network Security (Network Security)

According to the SANS Institute, "computer network security (Network Security) is the process of taking physical and software precautions to protect the underlying network infrastructure from unauthorized access, abuse, failure, modification, destruction, or improper disclosure, thereby creating a secure platform for computers, users, and programs to perform key functions in the security environment they allow."

Computer network security experts focus on internal protection by closely monitoring passwords, firewalls, Internet access, encryption, backup, and so on. Their main focus is to protect internal information by monitoring employee behavior and network access. Internet security experts, by contrast, may focus on external threats by looking for hackers trying to infiltrate the network and obtaining intelligence about potential future attacks. If you work in computer network security, you may implement and monitor software that detects threats and protects your company's network.

Information guarantee

The scope of information guarantee is wider than that of information security, Internet security and computer network security. While the above security features are usually focused on preventing access by hackers or unauthorized users, information assurance also involves ensuring that critical data and information is always available to users who have access to it.

According to Techopedia, the five key terms that help define information assurance are:

Integrity (ensure that information and systems can only be accessed by authorized users)

Availability (ensure that the information is reliable and can be made available to authorization as needed)

Authentication (using usernames, passwords, biometrics, tokens, and other methods to ensure that users are who they say they are)

Confidentiality (restrict access by using classification or clearance levels, as in the military)

Non-repudiation (ensure that someone cannot refuse the action taken in the information system, as the system provides proof of action)

"Information security professionals are usually former hackers and security experts who know both white and black hat hackers," InfoSec Institute said. "they are aware of the latest security alerts, update and patch current systems, and review software with developers for future deployment. During cyber threats, information security analysts can classify problems and find the best solutions to mitigate any losses."

Engaged in information, Internet, computer network) security or information guarantee

Although the four disciplines are distinct, they all share common goals and usually require similar skills, involving a wide range of multidisciplinary competencies. For example, practitioners must understand overall theory and advanced technology, and then possess and apply specific knowledge and skills in the areas of technology, law, policy, compliance, governance, intelligence, threat assessment, incident response, and management.

Of course, to keep up with the latest trends, hacker attack techniques and advances in cybercrime are also crucial in order to stay ahead of the perpetrators and protect the organization's important assets and information. Therefore, the obsession with the underlying technology is also essential.

To help put all this together, many people start their careers in the fields of information security, information security, Internet security, and computer network security. it is very helpful to get an advanced degree to improve their knowledge and training certificates.

And because these industries are experiencing talent shortages, there is a high demand (and so are salaries) for qualified professionals with the right combination of skills, experience and education. Today, there are also many options for promoting training and education-from individual courses and professional certificates to specialized master's degree programmes that can help people open the door to the broadest range of opportunities.

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