Security refers to the strategies, technologies, and practices used to protect systems, data, and networks from unauthorized access, attacks, damage, or theft. A strong security framework is essential for protecting confidentiality, integrity, and availability—also known as the CIA triad.
Key Aspects of Security
1、Data Protection
Encrypts sensitive information (e.g., passwords, payment data).
Ensures secure storage and transmission using SSL/TLS.
2、Access Control
Restricts access to authorized users only.
Uses passwords, two-factor authentication (2FA), or biometrics.
3、Network Security
Protects systems from external threats like malware, phishing, or denial-of-service (DoS) attacks.
Firewalls, VPNs, and intrusion detection systems (IDS) are commonly used.
4、Application Security
Ensures software is free from exploitable vulnerabilities.
Involves secure coding, regular updates, and vulnerability testing.
5、Monitoring and Incident Response
Systems are monitored for suspicious behavior.
Clear procedures are in place for identifying, responding to, and recovering from security incidents.
Why Security Matters
Protects sensitive data from breaches and leaks.
Prevents financial loss, fraud, and reputational damage.
Ensures compliance with laws like GDPR, HIPAA, or PCI-DSS.