Google’s Malware & Unwanted Software Guidelines

Malware & Unwanted Software: What You Need to Know #

Google actively flags and warns users about websites or apps that:

• Harm devices or users (malware)
  
• Deceive or disrupt user experience (unwanted software)
  

You can check flagged issues in Search Console → Security Issues Report.

1️⃣ What Counts as Malware? #

• Software/apps designed to harm computers, mobile devices, or users
  
• Can install without consent
  
• Includes viruses, trojans, ransomware, spyware
  
• Often installed unknowingly through:
  
  • Compromised downloads
    
  • Hacked websites
    
  • Malicious ads
    

2️⃣ What Counts as Unwanted Software (UwS)? #

• Software/apps that:
  
  • Change browser/homepage settings without consent
    
  • Leak personal data without proper disclosure
    
  • Inject ads or pop-ups outside of intended use
    
  • Act deceptively (fake alerts, false promises)
    
• Example: “Free PC Cleaner” that actually installs adware

3️⃣ Common Triggers for Warnings #

• Deceptive ads (e.g., “Play” button downloads unrelated files)
  
• Hiding key permissions or changes
  
• Forcing installation of bundled software
  
• Using unauthorized logos or endorsements
  
• Scaring users with fake system alerts
  
• Making uninstall difficult or manipulative

4️⃣ Google’s Fix-It Guidelines #

If flagged in Search Console (Security Issues):

1. Remove all malware or unwanted files
   
2. Follow Unwanted Software Policy
   
3. Ensure transparency
   
   • Show clear intent
     
   • Ask for consent before changes/data collection
     
4. Use proper APIs
   
   • Chrome changes → Chrome Settings API
     
5. Protect data
   
   • Encrypt sensitive info (HTTPS)
     
   • Don’t transmit extra or undisclosed data
     
6. Make uninstall easy
   
   • No scare tactics, remove all components
     
7. Request Review in Search Console after fixes

5️⃣ Special Guidelines #

For Chrome Extensions:

• Must be in Chrome Web Store
  
• Single-purpose, policy-compliant
  
• No silent installs
  
• Easy disable/uninstall instructions
  

For Mobile Apps:

• Follow Google Play policies
  
• Disclose data collection & usage
  
• Don’t interfere with other apps or OS
  
• Deliver all promised functionality
  
• Easy uninstall

⚡ FSIDM Quick Takeaway #

Think of it as SEO + Cybersecurity:
If your website, app, or software:

• Surprises users → Risk of UwS flag
  
• Harms devices or privacy → Risk of Malware flag
  

Both can kill:

• Traffic (Google warnings scare visitors)
  
• Trust (users won’t return)
  
• Revenue (partners & ads may drop you)