How do I know if my smartphone is infected with malware? +
Common signs include rapid battery drain, unexpected pop-up ads, spikes in mobile data usage, unexplained device overheating, and unfamiliar apps appearing on your home screen without your knowledge.
Do I need to enter my UPI PIN to receive money? +
No! Entering your UPI PIN is strictly required only to send or transfer money out of your account. You never need to enter a PIN, scan a QR code, or accept a collect request to receive payments.
What is 'Juice Jacking' and how can I avoid it at public charging stations? +
Juice jacking occurs when compromised public USB charging ports (at airports, train stations, or cafes) transfer malware or steal data from your phone while charging. Avoid this by using your own AC power adapter, carrying a portable power bank, or using a "USB data blocker" dongle.
Is sideloading apps from third-party sites safe for Android? +
Sideloading APK files from unverified third-party websites carries high security risks. Unofficial APKs are frequently modified to bypass Play Protect and contain spyware, banking trojans, or remote access tools (RATs). Stick to official app stores whenever possible.
Why is SMS-based Two-Factor Authentication (2FA) considered insecure? +
SMS OTPs are vulnerable to SIM-swapping fraud, SMS interception attacks, and notification previews on lock screens. Security experts recommend using app-based authenticators (like Google Authenticator, Aegis, or 1Password) or hardware keys (YubiKey) instead.
How often should I audit my mobile app permissions? +
You should audit app permissions at least once a month. Pay specific attention to apps requesting background access to Location, Camera, Microphone, Accessibility Services, and SMS read permissions. Revoke any permissions that aren't essential for the app's primary function.
What should I do immediately if I download a fake or suspicious app? +
1. Disconnect your phone from Wi-Fi and mobile data immediately.
2. Boot your phone into Safe Mode.
3. Go to Settings > Apps and uninstall the suspicious app.
4. Check Device Admin permissions to ensure the app hasn't elevated its access.
5. Change primary passwords and run a full security scan using built-in device protection (e.g., Google Play Protect).