It's dangerously easy to assume nothing bad will ever happen to you. Viruses and computer hacks bother other people and not you. Right?
When major viruses and hacks break out, companies release updates to operating systems to correct vulnerabilities. To stay safe, you have to stay updated. Check around on your devices. Update options look like this:
Make sure you've got a copy of MalwareBytes installed. It's recommended that you upgrade your account so it runs active monitoring but it's not required. Running manual scans is sufficient so long as you remember to occasionally do so.