Macs are more or less impervious to hacking, right? Not any more, according to two cybersecurity researchers during a briefing at the Black Hat USA Conference 2018. However, the attacks involved are difficult to achieve and need to be launched at very specific times during the computer's set-up.
https://www.notebookcheck.net/Black-Hat-USA-briefing-indicates-possible-set-up-exploits-in-enterprise-level-Macs.321520.0.html
They were never impervious to hacking, if anything they are easier to hack than even Windows PCs. Just since most people had Windows, most exploits were targeted at windows. But overall, their security has always been lacking.