Source: YouTube(edureka!)
What is Cyber Security?
Cyber Security is the practice of protecting systems, networks, programs, and data from digital attacks. These cyberattacks are usually aimed at:
- Accessing, changing, or destroying sensitive information
- Extorting money from users via ransomware
- Interrupting normal business operations
It’s a broad and constantly evolving field, essential in today's digital world where individuals, companies, and governments rely heavily on technology and the internet.
Core Areas of Cyber Security:
- Network Security: Protecting internal networks from intruders using tools like firewalls, intrusion detection systems (IDS), and anti-virus software.
- Information Security (InfoSec): Protecting the integrity and privacy of data, both in storage and in transit.
- Endpoint Security: Securing individual devices such as computers, mobile phones, and tablets from being exploited.
- Application Security: Ensuring software and apps are free of vulnerabilities through secure coding practices, regular updates, and patches.
- Cloud Security: Securing data, applications, and infrastructure in cloud computing environments.
- Identity and Access Management (IAM): Ensuring only authorized people have access to systems and data using methods like passwords, biometrics, and multi-factor authentication (MFA).
- Disaster Recovery and Business Continuity: Planning for how an organization will respond to cyber incidents and recover operations afterward.
- Operational Security (OpSec): Safeguarding processes and decision-making related to sensitive data.
Types of Cyber Threats:
- Malware: Viruses, worms, spyware, ransomware, trojans
- Phishing: Deceptive emails or messages that trick users into giving away data
- Man-in-the-middle attacks (MitM): Intercepting communications
- Denial-of-service (DoS) attacks: Flooding systems to crash them
- Zero-day exploits: Attacks on software vulnerabilities before a fix is available
- Social Engineering: Manipulating people into revealing confidential info
Why Cyber Security Matters:
- Individuals: Protects personal data, financial information, identity
- Businesses: Ensures continuity, trust, and compliance with regulations
- Governments: Safeguards national security, defense systems, and citizen data
Careers in Cyber Security:
- Cybersecurity Analyst
- Penetration Tester (Ethical Hacker)
- Security Architect
- Chief Information Security Officer (CISO)
- Incident Responder
- Malware Analyst
- Security Software Developer
Future of Cyber Security:
As technology advances (AI, IoT, cloud computing), cyber threats are becoming more sophisticated. This means cybersecurity will remain a high-demand field, with increased focus on:
- Artificial Intelligence in threat detection:
- Zero Trust Architecture
- Quantum encryption
- Security automation
