Cybersecurity

Protecting systems, networks and data from digital attacks

What is Cybersecurity?

Cybersecurity is the practice of protecting computers, networks, applications and data from unauthorized access, attacks and damage.

CIA Triad

Confidentiality
Ensures only authorized users can access data. Example: login authentication and encryption.
Integrity
Ensures data is not modified or tampered with by unauthorized users.
Availability
Ensures systems and services remain accessible when users need them.

Authentication Methods

Password
Basic login authentication using username and password.
OTP (One Time Password)
Temporary verification code sent to mobile or email.
Biometrics
Fingerprint, face recognition or iris scan verification.
MFA (Multi-Factor Authentication)
Combines multiple authentication methods for stronger security.

Security Layers

Network Security
Protects internal network using firewalls and monitoring systems.
Application Security
Secures software and web applications from vulnerabilities.
Endpoint Security
Protects user devices like laptops, mobiles and servers.

Security Tools

SIEM
Security Information and Event Management tools analyze logs and detect threats.
IDS / IPS
Detects and prevents suspicious network activity and attacks.
Firewall
Controls incoming and outgoing network traffic.
Antivirus
Detects and removes malicious software from systems.