It's a common myth that Apple Mac computers are not hacked, and that somehow they are inherently more secure than Windows computers. Every computer ever created is a target of hackers, so it's a best practice to keep updated from your computer vendor whether it's Microsoft, Apple or Linux. This week there's a lot of press being written about an Intel CPU security flaw. Here's a link with more details at 9to5mac.
On your Mac just double-check that you are at macOS 10.13.2, click the Apple icon, then choose About this Mac:
So this security bug affects CPU chips from Intel, AMD and even Arm.
Welcome to 2018, keep your OS updated, and may your business continue to grow this year.