What Is Cyber Security? 5 Common Types of Cyber Security

With the rapid rise of cyber threats, the importance of Cyber Security has never been greater. So, what exactly is Cyber Security, and what are its main types? In this article, we provide a comprehensive overview of Cyber Security, including its key categories, common attack types, and best practices for protection.

What Is Cyber Security?

Cyber Security refers to the set of technologies, processes, and practices designed to protect computers, servers, mobile devices, networks, and data from cyber attacks.

In today’s digital landscape, every organization faces increasing risks related to data breaches and system vulnerabilities. As a result, investing in Cyber Security is essential to safeguard business operations and sensitive information.

Common Types of Cyber Security

Below are five key types of Cyber Security widely used today:

1. Network Security

Network Security focuses on protecting computer networks from unauthorized access, intrusions, and attacks.

2. Application Security

Application Security prevents unauthorized access to applications and associated data. It also helps identify and mitigate vulnerabilities during the software development lifecycle.

Modern development approaches such as DevOps and DevSecOps integrate security testing directly into development processes.

3. Information and Data Security

This type of security ensures the integrity, confidentiality, and privacy of data - both at rest and in transit.

4. Operational Security

Operational Security involves defining and implementing policies and procedures to protect data, including:

- Access control management

- Data storage policies

- Information sharing protocols

5. Disaster Recovery and Business Continuity

This area defines how organizations respond to cyber incidents and disruptions.

- Disaster Recovery (DR) focuses on restoring systems and operations after an incident

- Business Continuity (BC) ensures that operations can continue despite resource limitations

6. End-User Education

Human error is one of the most unpredictable cybersecurity risks. Educating users on best practices helps prevent accidental security breaches, such as introducing malware into secure systems.

Common Cyber Attacks That Require Cyber Security

1. Malware

Malware refers to malicious software designed to disrupt systems, steal sensitive data, or demand ransom.

It can infiltrate systems through:

- Malicious email attachments

- Phishing links

- Untrusted software downloads

Common types include:

- Ransomware

- Trojan horses

- Spyware

2. Phishing

Phishing is a social engineering attack where attackers impersonate trusted entities (e.g., banks, social networks, government agencies) to trick users into revealing sensitive information such as:

- Usernames and passwords

- Credit card details

3. Man-in-the-Middle (MitM) Attack

In a Man-in-the-Middle attack, attackers secretly intercept communication between two parties to eavesdrop or steal sensitive data.

Public Wi-Fi networks are common targets for this type of attack.

Cyber Security Best Practices

Cyber threats are constantly evolving, making proactive security measures essential. Below are some recommended practices:

- Use antivirus software and advanced security solutions such as:

• Viettel Cloudrity

• Viettel Cloud Firewall

• Viettel Endpoint Security

• Viettel Anti-DDoS Volume-Based

• Viettel Virtual SOC

- Use strong passwords:

• At least 12 characters

• Include uppercase, lowercase, numbers, and special characters

• Avoid personal information

- Avoid clicking on suspicious links or email attachments

- Limit the use of public Wi-Fi networks

Conclusion

Cyber Security plays a critical role in protecting organizations from increasingly sophisticated cyber threats.

By implementing appropriate security measures and raising awareness among users, businesses can significantly reduce risks and ensure the safety of their digital assets.