The four most important tools for improving cybersecurity are antivirus, firewalls, software updates, and passwords. Good antivirus software has the ability to identify virus-like activity to stop threats that have not yet been identified. Good firewalls prevent malware from entering your network and have the ability to block traffic from foreign countries, which is the source of most ransomware and phishing due to weak international laws. Software updates make your computers resistant to new threats; however, they do require a lot of downtime to install. Passwords can be easily hacked so they need to be complex and frequently changed. All these tools are much more effective when they are connected to an alerting and reporting system.