Computer Security

Protect your computer and data from cyber threats with best practices

Essential Computer Security

Keep your computer and personal data safe from malware, hackers, and cyber threats

Antivirus & Malware Protection
Computer Security
Essential Protection:
  • Install reputable antivirus software
  • Keep antivirus definitions updated
  • Enable real-time scanning
  • Run regular full system scans
  • Use anti-malware tools for additional protection
  • Enable firewall protection
Software Updates
Keep Everything Updated:
  • Enable automatic OS updates
  • Update all software regularly
  • Install security patches immediately
  • Update browser and plugins
  • Remove unused software
  • Check for firmware updates
Warning: Outdated software is one of the most common entry points for hackers.
Data Backup
Backup Strategy:
  • Use the 3-2-1 rule: 3 copies, 2 different media, 1 offsite
  • Automate regular backups
  • Test backup restoration periodically
  • Use cloud storage for important files
  • Encrypt sensitive backups
  • Keep backups separate from main system
Encryption & Access Control
Secure Your Data:
  • Enable full disk encryption
  • Use strong login passwords
  • Enable screen lock with timeout
  • Use biometric authentication when available
  • Encrypt sensitive files and folders
  • Limit user account privileges
Safe Browsing
Browse Safely:
  • Use HTTPS websites (look for padlock icon)
  • Avoid clicking suspicious links
  • Don't download files from untrusted sources
  • Use ad blockers and privacy extensions
  • Clear browser cache regularly
Network Security
Secure Your Network:
  • Use strong Wi-Fi passwords (WPA3)
  • Change default router passwords
  • Disable remote administration
  • Use VPN on public networks
  • Disable file sharing when not needed
Recognizing & Handling Threats
Warning Signs:
  • Slow performance
  • Unexpected pop-ups
  • Files missing/encrypted
  • Homepage changed
Response Steps:
  • Disconnect internet
  • Run full virus scan
  • Change all passwords
  • Check financial accounts
Physical Security:
  • Carry laptop with you
  • Use Bluetooth trackers
  • Hide laptop in car trunk
  • Use alternate recovery emails
Deep Dive: Learn more on our Deep Dive page.
References & Sources
CISA - "Software Updates" View Site
NIST - "Cybersecurity Framework" View Site
FTC - "Computer Security" View Site
CISA - "Cybersecurity Best Practices." cisa.gov/cybersecurity
CISA - "Securing Network Infrastructure Devices." cisa.gov/cybersecurity
FBI Internet Crime Complaint Center (IC3) - "Search for Malware and Ransomware." ic3.gov/Home/Malware
Note: This website is for educational purposes only.