Cyber Security Interview Questions For Freshers 2025

Are you preparing for a Cyber Security interview? If yes, then you have landed at the right place.

In this article, we have listed the top Cyber Security Interview Questions and Answers for Freshers in 2025.

These questions are curated by industry experts and cover all the important topics of Cyber Security.

Basic Cyber Security Interview Questions

1. What is Cyber Security?

Cyber Security is the practice of protecting systems, networks, and programs from digital attacks.

2. What is the CIA Triad?

The CIA Triad stands for Confidentiality, Integrity, and Availability. It is a model designed to guide policies for information security within an organization.

3. What is a Firewall?

A Firewall is a network security device that monitors and filters incoming and outgoing network traffic based on an organization's previously established security policies.

4. What is the difference between a Vulnerability, Threat, and Risk?

A Vulnerability is a weakness in a system. A Threat is a potential danger that can exploit a vulnerability. A Risk is the potential for loss or damage when a threat exploits a vulnerability.

Network Security Interview Questions

5. What is the difference between IDS and IPS?

IDS (Intrusion Detection System) detects and alerts on potential threats, while IPS (Intrusion Prevention System) detects and blocks potential threats.

6. What is a VPN?

A VPN (Virtual Private Network) extends a private network across a public network and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network.

7. What is the difference between TCP and UDP?

TCP (Transmission Control Protocol) is a connection-oriented protocol that ensures reliable delivery of data. UDP (User Datagram Protocol) is a connectionless protocol that does not guarantee reliable delivery but is faster.

Web Application Security Interview Questions

8. What is OWASP Top 10?

OWASP Top 10 is a standard awareness document for developers and web application security. It represents a broad consensus about the most critical security risks to web applications.

9. What is SQL Injection?

SQL Injection is a code injection technique that might destroy your database. It is one of the most common web hacking techniques.

10. What is XSS?

XSS (Cross-Site Scripting) is a type of security vulnerability typically found in web applications. XSS attacks enable attackers to inject client-side scripts into web pages viewed by other users.

Cryptography Interview Questions

11. What is the difference between Symmetric and Asymmetric Encryption?

Symmetric Encryption uses the same key for encryption and decryption. Asymmetric Encryption uses a pair of keys (public and private) for encryption and decryption.

12. What is Hashing?

Hashing is the process of converting a given key into another value. A hash function is used to generate the new value according to a mathematical algorithm.

Malware Analysis Interview Questions

13. What is Malware?

Malware is software that is specifically designed to disrupt, damage, or gain unauthorized access to a computer system.

14. What is Ransomware?

Ransomware is a type of malware that threatens to publish the victim's data or perpetually block access to it unless a ransom is paid.

15. What is a Trojan?

A Trojan is a type of malware that is often disguised as legitimate software. Trojans can be employed by cyber-thieves and teachers trying to gain access to users' systems.