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How to Secure Android When Installing Apps Outside Play Store 

Issue Description 

Sideloading APKs increases risk of malware and data theft. 

Common Risks 

Fake APKs 

Trojans and spyware 

Permission abuse 

Step-by-Step Protection 

Step 1: Disable Unknown App Sources 

Settings → Security → Install unknown apps 

Disable for browsers and file managers 

 

Step 2: Verify APK Integrity 

Download only from trusted developers 

 

Step 3: Review Permissions Carefully 

Deny unnecessary permissions 

 

Step 4: Scan After Installation 

Use Play Protect scan 

Explore Further 

Avoid sideloading altogether 

Prevention & Best Practices 

Play Store is safest source.