Cyber security is a hotbed of research and development. There is more technology out there than any company could possibly afford, need, or use (shhh don’t tell the vendors we told you that they will get mad at us!!) In many cases, these miracle solutions don’t actually solve all of your problems (dang it, we did it again!)
There are basic cyber security defenses that are critical to maintaining a secure company.
For instance, if you don’t have a firewall protecting the company network and antivirus running on every computer, you’re not merely "leaving the door open..." You’re hanging a sign out saying “Easy Target Here!” as cybercriminals scan the web looking for low-hanging fruit. Get the bare basics in place, research the particular solutions that you need for your unique use case (email scanning, web application firewalls, etc.), and you’ll be much less vulnerable to ransomware.