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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.

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Avast Academy Security

Malware

More About Malware
What Is Malware and How to Protect Against Malware Attacks?
Malicious Code: What Is It and How Can You Prevent It?
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What Is Spyware, Who Can Be Attacked, and How to Prevent It
What Is Scareware? Detection, Prevention, and Removal
What Is Pegasus Spyware and Is Your Phone Infected with Pegasus?
How to Detect and Remove Spyware From an iPhone
What Is the Mirai Botnet?
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The Zeus Trojan: What it is, How it Works, and How to Stay Safe
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Viruses

More About Viruses
What Is a Computer Virus and How Does It Work?
How to Check for Viruses on iPhone
iPhone Viruses: Can My Phone Get Infected?
Fake Viruses: How Do You Know If a Virus Alert Is Real?
The 7 Most Dangerous New Computer Viruses & Malware of 2024
Can Macs Get Viruses?
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Ransomware

More About Ransomware
The Essential Guide to Ransomware
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How to Prevent Ransomware
What Is Ryuk Ransomware?
The Destructive Reality of Ransomware Attacks
How to Remove Ransomware from Android Devices
How to Remove Ransomware from Your iPhone or iPad
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Phishing

More About Phishing
What Is Vishing? Definition, Attack Methods & Prevention
How to Spot and Prevent IP Spoofing
How to Spot Amazon Phishing Emails and Beat Scammers
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What Is Pharming and How to Protect Against It
Spear Phishing: What Is It and How Can You Avoid It?
What Is Phone Number Spoofing and How to Stop It
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Scams

More About Scams
Facebook Marketplace Scams & How to Avoid Them
What Is Pretexting and How to Prevent It?
Is Venmo Safe? How to Use Venmo Securely
Common Geek Squad Scams and How to Spot Them
How to Identify WhatsApp Scams
Is Etsy Legit? 8 Etsy Scams and How to Avoid Them
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Hacking

More About Hacking
How to Tell If Your Phone Is Tapped and What You Can Do About It
Has My Amazon Account Been Hacked?
Can Someone Hack Your Phone by Calling or Texting You?
Packet Sniffing Explained: Definition, Types, and Protection
Has My PayPal Account Been Hacked?
What to Do If Your Spotify Account Gets Hacked
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Other Threats

More About Other Threats
What Is CAPTCHA and How Does It Work?
What Is DNS Poisoning and How to Protect Your Data
What Is a Swatting Incident and How Does Swatting Work?
How to Keep Kids Safe Online
Has My Twitter Account Been Hacked?
A Guide to APKPure: Is It Legal and Is It Safe?
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Passwords

More About Passwords
How to View Saved Passwords in Chrome: Step-by-Step Guide
How Does Two-Factor Authentication (2FA) Work?
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Step-by-Step Guide to Password Protect a File or Folder in Windows
How to Choose the Best Password Manager
How to Create a Strong Password
The Top Password-Cracking Techniques Hackers Use
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Business

More About Business
What is cybersecurity?
IT Disaster Recovery Plans
What Is a Wildcard Certificate and How Does It Work?
Business Continuity Plan (BCP): What Is It and How to Make One
OPSEC: What Is It and How Does It Work?
What Is the Cyber Kill Chain and How Does It Work?
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Security Tips

More About Security Tips
Why Your iPhone Won't Update and 10 Ways to Fix It
What Is Cash App and Is It Safe?
How to Unblock a Number on an Android Phone
How to Find and Retrieve Deleted Text Messages on Your Android
How to Check Your Credit Score
TLS Explained: What Is Transport Layer Security and How Does It Work?
SHOW MORE "SECURITY TIPS" ARTICLES

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What's New on Avast Academy

Security
Privacy
Performance
  • Why Your iPhone Won't Update and 10 Ways to Fix It
  • Facebook Marketplace Scams & How to Avoid Them
  • How to Check for Viruses on iPhone
  • iPhone Viruses: Can My Phone Get Infected?
  • What Is Pretexting and How to Prevent It?
  • Is Venmo Safe? How to Use Venmo Securely
  • What Is Cash App and Is It Safe?
  • How to Unblock a Number on an Android Phone
  • What Is CAPTCHA and How Does It Work?
  • Common Geek Squad Scams and How to Spot Them
  • How to Delete Search History on iPhone and iPad
  • SSID: What It Means and How to Find Yours
  • Generative AI Defined: What It Means & How It Works
  • How to Block Someone on TikTok (a Step-by-Step Guide)
  • Understanding AES Encryption: What Is the Advanced Encryption Standard?
  • How Do I Place a Credit Fraud Alert?
  • How to Delete an Apple ID Account
  • How to Delete Your BeReal Account in Three Easy Steps
  • What Is Blockchain Technology And How Does It Work?
  • Artificial Intelligence Defined: What Is AI and How Does It Work?
  • How to Clear the Instagram Cache on Your Device
  • The Applications Folder on Mac: How to Find and Access Your Apps
  • How to Clear System Data or “Other” Storage from Your iPhone
  • How to Fix Corrupted Files on Windows Using SFC And DISM
  • How to Lower CPU Usage on Windows
  • Why Won't My iPhone Turn On? 6 Easy Fixes to Try
  • How to Fix the “Driver Is Unavailable” Printer Error
  • Why Your Mouse Is Broken or Not Working and How to Fix It
  • Why Is My Battery Draining So Fast? Tips and Troubleshooting Guide
  • Why Your iPhone Gets So Hot and How to Fix It

Free Security Tools

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  • Download Adware Removal and Cleaner Tool for Free
  • Free Malware Scanner and Removal Tool Download
  • Free Anti-Spyware Scanner and Remover
Security
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