Common or Important Security Concepts that you should be aware of

Common Security Concepts

CIA Triads

AuthN and AuthZ

MFA

2FA

OAuth2.0

SSO

OIDC and SAML

Malware

Virus

Ransomware

Spam and Phishing

Social Engineering

Password Attacks

Threats

Vulnerabilities

Exploits

Risk

Web Security

OWASP Top 10

XSS

Injection Attack

CSRF

SSRF

HTTP Header Smuggling

Session Fixation

Application Security

Network Security

How SSL/TLS works

How DNS works

TCP 3 way handshake

Firewall

DoS and DDoS

Ping Flood

Cache Poisoning

Cloud Security

Shared Responsibility

IAM

CSPM

CASB

CWPP

Cryptography

Encryption and Decryption

Hashing

Encoding and Decoding

Salt