Android antivirus apps are heavily advertised, often with alarming warnings. For most users they are unnecessary — and some cause more problems than they solve.
Why Android is more protected than it appears
Android runs apps in a sandbox, so one app cannot freely read another's data or modify the system. It also includes Google Play Protect, which scans apps on installation and periodically, at the operating system level, on by default. A self-spreading virus of the old desktop kind is not really how Android gets compromised.
How Android phones actually get compromised
Almost always by the user being persuaded to do something:
- Installing apps from outside the Play Store.
- Granting Accessibility permission to a malicious app — the mechanism behind most Android banking fraud in India.
- Installing screen-sharing apps during a fake support call.
- Tapping phishing links in SMS and WhatsApp.
An antivirus app does not prevent most of these. If you grant Accessibility access to a malicious app, an antivirus is unlikely to stop the consequences.
What antivirus apps often actually do
Many run constantly, consuming battery, show anxiety-inducing notifications pushing a paid upgrade, and request extensive permissions. Some free security apps have themselves been found to collect excessive data.
What genuinely protects you
- Install only from the Play Store.
- Never grant Accessibility permission unless you fully trust the app — check Settings, Accessibility now and remove anything unexpected.
- Review app permissions periodically.
- Keep the OS and apps updated; most real compromises exploit known, already-patched flaws.
- Never install screen-sharing apps at anyone's request during a call.
- Do not tap links in unexpected messages about KYC, deliveries or refunds.
- Enable two-factor authentication and use a screen lock.
When antivirus might make sense
Narrow cases: if you must sideload apps for work, share the phone with someone who installs things carelessly, or manage a device for someone who has already fallen for scams. Then choose a well-established security vendor rather than a free app with aggressive advertising.
The summary
Google Play Protect plus careful habits protects the overwhelming majority of users better than any third-party antivirus. The threat on Android is not a silent virus — it is someone convincing you to hand over access, and no app defends against that as effectively as knowing the pattern.
