You are probably thinking, is my home firewall properly configured? Cisco sent preconfigured firewalls to each employee. Most companies can’t afford to send every employee a firewall. One way to ensure your employee’s home networks are secure is to have them do a test on it. Steve Gibson’s ShieldsUP web page provides a home firewall test that can be run: https://www.grc.com/x/ne.dll?bh0bkyd2. You could send this out to your employees to test their home firewalls. HackerTarget offers a way to test your external firewall also: https://hackertarget.com/firewall-test/. In addition, you can update your information security policy or acceptable use policy (AUP) stating that an employee can only connect to the company network with their company-assigned computer. Only phones or home computers can be used for checking email.