Device Security: Updates, Antivirus & Backups

A secure device is one that's kept up to date, protected against malicious software, and backed up so a loss doesn't mean losing everything.

• Updates: Operating system and app updates often patch security holes attackers actively exploit — delaying updates leaves known doors open.
• Antivirus/anti-malware: Reputable free antivirus software catches many common threats. Avoid downloading "cracked" software, which frequently hides malware.
• App permissions: Review what phone apps can access (camera, contacts, location) and remove permissions or apps that don't need them.
• Backups: Keep important files backed up (cloud or external drive) so ransomware, theft, or hardware failure doesn't mean total data loss.

Practical Skill: Check for and install pending updates on a real device, review its installed apps' permissions, and confirm important files have a backup copy somewhere else.

=== DEVICE SECURITY CHECKLIST === [ ] Operating system is fully updated[ ] Reputable antivirus/anti-malware software is installed and active[ ] Apps are only downloaded from official app stores[ ] Phone app permissions reviewed — unused permissions revoked[ ] Screen lock (PIN/fingerprint) is enabled on phone and laptop[ ] Important files exist in at least 2 places      (e.g. device + cloud, or device + USB drive)[ ] Old/unused accounts and apps are removed, not left dormant