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Security

We’ve been fighting viruses since 1988 — so we know how to keep you secure. Learn from our experts and get the skills you need to stay safe against online threats.

Malware
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Avast Academy Security

Malware

More About Malware
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The Essential Guide to Malware: Detection, Prevention & Removal
How to Remove Spyware From a PC
Webcam Security: How to Stop Your Camera from Being Hacked
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Spyware: Detection, Prevention, and Removal
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What is Adware and How Can You Prevent it?
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Mac Security: The Essential Guide
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Malware vs. Viruses: What’s the Difference?
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Viruses

More About Viruses
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The Essential Guide to Computer Viruses
Worm vs. Virus: What's the Difference and Does It Matter?
How to Detect & Remove Spyware From an Android Phone
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What Is a Computer Worm?
How to Remove Viruses & Malware From a PC
Can Macs Get Viruses?
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Ransomware

More About Ransomware
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How to Prevent Ransomware
The Essential Guide to Ransomware
How to Remove Ransomware from Android Devices
How to Remove Ransomware from Your iPhone or iPad
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What is CryptoLocker Ransomware and How to Remove it
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Cerber Ransomware: Everything You Need to Know
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Other Threats

More About Other Threats
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Is This Website Safe? Your Complete Website Safety Check Guide
What Are Meltdown and Spectre?
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What is Cracking? It’s Hacking, but Evil
What Is Doxxing and How Can You Prevent It?
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What Is Cross-Site Scripting (XSS)?
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What Is Hacking?
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Passwords

More About Passwords
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Step-By-Step Guide to Password Protect a File or Folder in Windows
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How to Recover or Reset Forgotten Windows Passwords
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How to Choose the Best Password Manager
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Internet of Things

More About Internet of Things
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What is the Internet of Things (IoT)?
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Internet of Things Security Risks
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What is a Smart Home?
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How to Build a Smart Home: A Beginner’s Guide
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What's New on Avast Academy

Security
Privacy
Performance
  • What Are Meltdown and Spectre?
  • Worm vs. Virus: What's the Difference and Does It Matter?
  • What is Cracking? It’s Hacking, but Evil
  • How to Detect & Remove Spyware From an Android Phone
  • What Is Doxxing and How Can You Prevent It?
  • What Is a Computer Worm?
  • How to Remove Viruses & Malware From a PC
  • What Is Cross-Site Scripting (XSS)?
  • What Is Hacking?
  • What Is Cloud Security?
  • The Best Privacy and Security Apps for iPhone
  • The Best Ad Blockers for iPhone and iPad
  • How to Clear Your Cache on a Mac
  • How to Set Up a VPN
  • What Are the Best Ad Blockers to Use for Your Browser?
  • A Complete Guide to Web Tracking (and How to Avoid It)
  • How to Open Incognito Mode in Google Chrome
  • How to Clear Your Browser History
  • IPv4 vs. IPv6: What’s the Difference?
  • How to Change Your Privacy Settings on Facebook
  • How Updating Drivers Can Increase PC Performance by 100%
  • Why Does My Computer Keep Crashing?
  • How to Speed Up Slow Internet on Your Phone
  • How to Clean Up Your Mac
  • How to Increase Your Internet Speed... Right Now!
  • How to Format a Hard Drive: The Essential Guide
  • The Essential Guide: How to Clean Up Your Computer
  • How to Speed Up Your PC
  • How to Speed Up a Slow Mac
  • How to Clone a Hard Drive

Free Security Tools

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