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What Is Cybersecurity?
Cybersecurity protects systems, networks, and data from theft, damage, and unauthorized access.
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AiTechWorlds
AiTechWorlds
Cybersecurity is the practice of protecting systems, networks, and data from digital attacks. This visual guide covers the CIA triad, malware, phishing, ransomware, encryption, firewalls, VPNs, and common attacks like XSS and SQL injection.
Cybersecurity protects systems, networks, and data from theft, damage, and unauthorized access.
Security aims to keep data private, accurate, and accessible to authorized users.
Malware is malicious software — viruses, worms, trojans, and spyware — designed to harm or steal.
Phishing tricks people into revealing passwords or data through fake messages and sites.
Ransomware encrypts your files and demands payment to unlock them.
Long, unique passwords stored in a manager stop most account takeovers.
2FA adds a second proof of identity, so a stolen password alone isn’t enough.
Encryption scrambles data so only someone with the key can read it.
TLS encrypts web traffic so data between you and a site stays private.
A firewall filters network traffic, blocking unauthorized connections.
A VPN encrypts your internet traffic and hides your IP through a secure tunnel.
Attackers manipulate people — not systems — to gain access or information.
SQL injection inserts malicious SQL via input fields to read or alter a database.
XSS injects malicious scripts into web pages that run in other users’ browsers.
A DDoS floods a server with traffic from many machines to take it offline.
Encryption is reversible with a key; hashing is one-way and used to store passwords.
Zero trust assumes no user or device is trusted by default and verifies everything.
A vulnerability is a weakness; an exploit is the attack that takes advantage of it.
Attackers probe for the weakest link — outdated software, weak passwords, or human error.
Update software, use 2FA, beware of links, and back up your important data.
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