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What is cybersecurity?

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Quick answer

Cybersecurity is the practice of protecting computers, networks, and data from digital attacks, theft, and damage. It combines technology, processes, and habits to keep information safe and systems running. It defends against threats like malware, phishing, and hacking. Core ideas: confidentiality, integrity, and availability of data.

Key things to understand

  1. It defends against threats like malware, phishing, and hacking.
  2. Core ideas: confidentiality, integrity, and availability of data.
  3. Tools include passwords, encryption, firewalls, and updates.
  4. Most breaches start with human error, so awareness matters as much as tech.

People also ask

What is cybersecurity in simple terms?
Protecting devices, networks, and data from digital attacks and unauthorized access.
What is phishing?
A scam that tricks you into revealing passwords or data, often via fake emails or websites.
How can I stay safe online?
Use strong unique passwords, enable two-factor authentication, keep software updated, and be wary of suspicious links.

Part of the guide: How the Internet Works →