Cybersecurity · Devices
Secure a phone or computer
Apply the protections that prevent most common compromises.
7 min read · General educational guidance
- Install operating-system and browser updates and remove software you no longer use.
- Use a strong screen lock, device encryption and the built-in security protection.
- Back up important data and enable a trusted find-or-erase feature for mobile devices.
Practical example
Turn on automatic operating-system and browser updates, remove two unused apps and extensions, require a strong screen lock, confirm device encryption, and restore one file from your backup as a test.
Common mistakes to avoid
- Installing several security products that conflict or create false confidence.
- Delaying browser and operating-system updates for months.
- Calling cloud sync a complete backup without testing file recovery.
Trusted sources and next reading
If money, identity documents or a work system may be affected, preserve evidence and contact the relevant bank, employer or authority quickly.