Contents
In short
Current operating systems with automatic updates on and built-in protection active provide a solid base. Additional security software is an option, not a must.
What is it?
Device protection covers automatic updates, screen lock, storage encryption and protection against malware. Many of these are built into Windows, macOS, Android and iOS.
Who is it useful for?
Every internet-connected device, including tablets and older laptops.
What does it protect against?
- Known malware and harmful downloads
- Exploitation of known vulnerabilities (through updates)
- Data access after loss (through lock and encryption)
What does it not protect against?
- Phishing where you enter data yourself
- Outdated devices without security updates
- Apps from dubious sources that you grant permissions
What you can do for free
- 01Turn on automatic updates for system and apps
- 02Keep built-in malware protection active
- 03Turn on screen lock and device encryption
- 04Install apps only from official stores
When is an extra product worth it?
Additional security software can make sense if you want to manage several platforms uniformly or bundle extras such as parental controls.
What to check when choosing
- Independent test results rather than marketing claims
- Low system impact
- No aggressive upselling or fear messaging
- Transparent handling of your data
We deliberately name no products and publish no rankings.
Common mistakes
- Running two virus scanners at once
- Postponing updates
- Still using devices without security updates for banking
Checklist
- Automatic updates on
- Built-in protection active
- Screen lock with PIN or biometrics
- Device still receives security updates
Frequently asked questions
Do I need a virus scanner on my phone?
On current systems with apps from official stores, usually not. Updates and sparing app permissions matter more.
What about devices without updates?
Stop using them for banking or key accounts and replace them in the medium term.
Sources
Checked on 6 Oct 2026.