Back in the old days the name of the cybersecurity game was prevention - if you had a strong perimeter, then you're good! That thought process has shifted rather dramatically, because we know they'll get it regardless.
Most companies only have basic firewall protection, generally hardware-based and maybe a few others may conduct regular scans of their environment. Really no different than your home having a basic lock and maybe a deadbolt.
Unfortunately, Cyber Attacks don’t take time off to celebrate with family and friends. Are you concerned your business has been affected by the SolarWinds hack? If so, get help right away.